Lenovo SR635 V3 Think System Server Instructions

Lenovo ThinkSystem SR635 V3 Server
Product Guide

SR635 V3 Think System Server

The Lenovo ThinkSystem SR635 V3 is a 1-socket 1U server that features the AMD EPYC 9004 “Genoa” family of processors. With up to 128 processor cores and support for the new PCIe 5.0 standard for I/O, the SR635 V3 offers the ultimate in one-socket server performance in a 1U form factor. The server is ideal for dense workloads that can take advantage of GPU processing and high- performance NVMe drives.
Suggested uses: AI Inference, VDI, OLTP, Analytics, HPC, software-defined storage Did you know?
The SR635 V3 server has been designed to take advantage of the features of the 4th generation AMD EPYC processors, such as the full performance of a 360W 128-core processor, support for 4800 MHz memory and PCIe Gen 5.0 support. The server also offers onboard NVMe PCIe ports that allow direct connections to 16x NVMe SSDs, which results in faster access to store and access data.
Lenovo ThinkSystem SR635 V3 Server
Key features
Combining performance and flexibility, the SR635 V3 server is a great choice for enterprises of all sizes. The server offers a broad selection of drive and slot configurations and offers high performance features that industries such as finance, healthcare and telco need. Outstanding reliability, availability, and serviceability (RAS) and high-efficiency design can improve your business environment and can help save operational costs.

Scalability and performance
The following features boost performance, improve scalability and reduce costs:

• Supports one fourth-generation AMD EPYC 9004 processor
  Up to 128 cores and 256 threads
  Core speed of up to 4.1 GHz
  TDP rating of up to 360 W

• Support for DDR5 memory DIMMs to maximize the performance of the memory subsystem:
  12 DDR5 memory DIMMs
  12 memory channels (1 DIMM per channel)
  DIMM speeds up to 4800 MHz

• Using 256GB 3DS RDIMMs, the server supports up to 3TB of system memory

• Supports up to four single-width GPUs (3 in rear slots, 1 in front slots), each up to 75W for substantial processing power in a 1U system.

• The server is Compute Express Link (CXL) v1.1 Ready. With CXL 1.1 for next-generation workloads, you can reduce compute latency in the data center and lower TCO. CXL is a protocol that runs across the standard PCIe physical layer and can support both standard PCIe devices as well as CXL devices on the same link.

• Supports up to 12x 2.5-inch hot-swap drive bays, by using combinations of front-accessible (up to 10 bays) and rear-accessible (2 bays).

• Supports 16x NVMe drives without the need for additional NVMe adapters and without oversubscription of PCIe lanes (1:1 connectivity). The use of NVMe drives maximizes drive I/O performance, in terms of throughput, bandwidth, and latency.

• Supports 12x SATA drives using the onboard SATA controller (no additional adapter needed), enabling lower cost, high capacity storage solution for cold storage workloads.

• Supports 12x SAS drives using a variety of support RAID controllers or SAS HBAs.

• Supports high-speed RAID controllers from Lenovo and Broadcom providing 12 Gb SAS connectivity to the drive backplanes. A variety of PCIe 3.0 and PCIe 4.0 RAID adapters are available.

• Supports two externally accessible 7mm hot-swap drives for operating system boot functions or data storage. Optional RAID with the addition of a RAID adapter installed in a slot.

• Supports M.2 drives for convenient operating system boot functions or data storage. Available M.2 adapters support either one M.2 drive or two M.2 drives. Optional RAID with the addition of a RAID adapter installed in a slot.

• Supports up to 5x PCIe slots, 3x at the rear of the server and 2x at the front of the server. Also supports 1x OCP 3.0 slot, either in the front or in the rear.

• The server has a dedicated industry-standard OCP 3.0 small form factor (SFF) slot, with a PCIe 5.0 x16 interface, supporting a variety of Ethernet network adapters. Simple-swap mechanism with thumbscrews and pull-tab enables tool-less installation and removal of the adapter. Supports shared BMC network sideband connectivity to enable out-of-band systems management.

• The server offers PCI Express 5.0 (PCIe Gen 5) I/O expansion capabilities that doubles the theoretical maximum bandwidth of PCIe 4.0 (32GT/s in each direction for PCIe 5.0, compared to 16 GT/s with PCIe 4.0). A PCIe 5.0 x16 slot provides 128 GB/s bandwidth, enough to support a 400GbE network connection.

• The server uses the Lenovo Neptune closed-loop liquid-cooled heatsink design to more effectively remove heat from high-performance processor SKUs.

Availability and serviceability

The server provides many features to simplify serviceability and increase system uptime:

• Designed to run 24 hours a day, 7 days a week
• The server uses ECC memory and supports memory RAS features including Single Device Data
• Correction (SDDC, also known as Chipkill), Patrol/Demand Scrubbing, Bounded Fault, DRAM
• Address Command Parity with Replay, DRAM Uncorrected ECC Error Retry, On-die ECC, ECC Error
• Check and Scrub (ECS), and Post Package Repair.
• The server offers hot-swap drives, supporting RAID redundancy for data protection and greater system uptime.
• Available M.2 configuration with RAID support which can enable two SATA or two NVMe M.2 drives to be configured as a redundant pair.
• The server has up to two hot-swap redundant power supplies and up to seven hot-swap redundant fans to provide availability for business-critical applications.
• Optional front-accessible slots and drives so that most major components and cables (except power) are located at the front of the server
• The power-source-independent light path diagnostics uses LEDs to lead the technician to failed (or failing) components, which simplifies servicing, speeds up problem resolution, and helps improve system availability.
• Solid-state drives (SSDs) offer more reliability than traditional mechanical HDDs for greater uptime.
• Proactive Platform Alerts (including PFA and SMART alerts): Processor, voltage regulators, memory, internal storage (SAS/SATA HDDs and SSDs, NVMe SSDs, M.2 storage, flash storage adapters), fans, power supplies, RAID controllers, server ambient and subcomponent temperatures. Alerts can be surfaced through the XClarity Controller to managers such as Lenovo XClarity Administrator, VMware vCenter, and Microsoft System Center. These proactive alerts let you take appropriate actions in advance of possible failure, thereby increasing server uptime and application availability.
• The built-in XClarity Controller 2 continuously monitors system parameters, triggers alerts, and performs recovery actions in case of failures to minimize downtime.
• Built-in diagnostics in UEFI, using Lenovo XClarity Provisioning Manager, speed up troubleshooting tasks to reduce service time.
• Lenovo XClarity Provisioning Manager supports diagnostics and can save service data to a USB key drive or remote CIFS share folder for troubleshooting and reduce service time.
• Auto restart in the event of a momentary loss of AC power (based on power policy setting in the XClarity Controller service processor) Offers a diagnostics port on the front of the server to allow you to attach an external diagnostics handset for enhanced systems management capabilities.
• Support for the XClarity Administrator Mobile app running on a supported smartphone and connected to the server through the service-enabled USB port, enables additional local systems management functions.
• Three-year or one-year customer-replaceable unit and onsite limited warranty, 9 x 5 next business day. Optional service upgrades are available.

Manageability and security

Systems management features simplify local and remote management:

• The server includes an XClarity Controller 2 (XCC2) to monitor server availability. Optional upgrade to XCC Platinum to provide remote control (keyboard video mouse) functions, support for the mounting of remote media files, FIPS 140-3 security, enhanced NIST 800-193 support, boot capture, and other management and security features.
• Lenovo XClarity Administrator offers comprehensive hardware management tools that help to increase uptime, reduce costs and improve productivity through advanced server management capabilities.
• UEFI-based Lenovo XClarity Provisioning Manager, accessible from F1 during boot, provides system inventory information, graphical UEFI Setup, platform update function, RAID Setup wizard, operating system installation function, and diagnostic functions.
• Support for Lenovo XClarity Energy Manager which captures real-time power and temperature data from the server and provides automated controls to lower energy costs.
• An integrated industry-standard Unified Extensible Firmware Interface (UEFI) enables improved setup, configuration, and updates, and simplifies error handling.
• Support for industry standard management protocols, IPMI 2.0, SNMP 3.0, Redfish REST API, serial console via IPMI
• An integrated hardware Trusted Platform Module (TPM) supporting TPM 2.0 enables advanced cryptographic functionality, such as digital signatures and remote attestation.
• Administrator and power-on passwords help protect from unauthorized access to the server.
• Supports AMD Secure Root-of-Trust, Secure Run and Secure Move features to minimize potential attacks and protect data as the OS is booted, as applications are run and as applications are migrated from server to server.
• Supports Secure Boot to ensure only a digitally signed operating system can be used.
• Industry-standard Advanced Encryption Standard (AES) NI support for faster, stronger encryption.
• Additional physical security features are a chassis intrusion switch and a lockable front bezel.

Energy efficiency
The following energy-efficiency features help save energy, reduce operational costs, and increase energy availability:

• Energy-efficient planar components help lower operational costs.
• High-efficiency power supplies with 80 PLUS Titanium certifications
• Low-voltage 1.1 V DDR5 memory offers energy savings compared to 1.2 V DDR4 DIMMs, an approximately 20% decrease in power consumption
• Solid-state drives (SSDs) consume as much as 80% less power than traditional spinning 2.5-inch HDDs.
• The server uses hexagonal ventilation holes, which can be grouped more densely than round holes, providing more efficient airflow through the system and thus keeping your system cooler.
• Optional Lenovo XClarity Energy Manager provides advanced data center power notification and analysis to help achieve lower heat output and reduced cooling needs.

Comparing the SR635 V3 to the SR635

The ThinkSystem SR635 V3 improves on the previous generation SR635, as summarized in the following table.
Table 1. Comparing the SR635 V3 to the SR635

● Up to 64 cores
● TDP ratings up to 280W 128x PCIe 4.0 lanes per processor| ● 1x 4th Gen AMD EPYC processor
● Up to 128 cores
● TDP ratings up to 360W 128x PCIe 5.0 lanes per processor| ● Significant increase in cores per processor
● Increased performance Consolidation of more apps on same number of servers, reducing costs● New PCIe 5.0 support means higher performance networking and NVMe storage
Memory| ● DDR4 memory operating up to 2933 MHz
● 8 channels per CPU
● 16 DIMMs, 2 DIMMs per channel
● Supports RDIMMs and 3DS RDIMMs
● Up to 2TB of system memory (16x 128GB)| ● DDR5 memory operating up to 4800 MHz
● 12 channels per CPU
●  12 DIMMs, 1 DIMM per channel
● Supports RDIMMs, 3DS RDIMMs and 9×4 RDIMMs
● Up to 1.5TB of system memory (12x 128GB)| ● New DDR5 memory offers significant performance improvements over DDR4
● More memory channels means greater memory bandwidth
● Support for lower-cost 9×4 DIMMs
Internal storage| ● 4x 3.5-inch or 10x 2.5- inch front hot-swap drive bays
● Combinations of SAS/SATA, NVMe, or
AnyBay
● 4x 2.5″ NVMe drives mid-chassis hot-swap drive bays
● 2x 2.5″ SAS/SATA or NVMe rear hot-swap drives
● 2x Internal M.2 with optional RAID| ● 10x 2.5-inch front hot-swap drive bays
● Combinations of SAS/SATA, NVMe, or AnyBay
● 16 x E1.S (5.9mm) EDSFF
● 2x 2.5″ SAS/SATA or NVMe rear hot-swap drives
● 2x 7mm hot-swap rear hot- swap drives
● Internal M.2 module (PCIe x4) supporting up to two M.2 drives
● 2x Internal M.2 with optional RAID 1 (RAID support via a separate adapter)
● Supports M.2 with NVMe x4 interface| ● 2X performance improvement with PCIe Gen5 NVMe
● Support for up to 12x 2.5″ NVMe drives
● New 16x E1.S configuration New front PCIe slots configuration
● Support for 7mm drive bays as a boot drive alternative Improved M.2 NVMe performance
● No support for 3.5-inch drive bays
RAID| ● 8-port and 16-port RAID adapters with up to 8GB flash
● Support for Lenovo and Broadcom adapters Support for PCIe or Internal cabled (CFF) form factor adapters Storage ● HBAs available PCIe 3.0 and PCIe 4.0 adapter choices| ● 8-port and 16-port RAID adapters with up to 8GB flash Support for Lenovo and Broadcom adapters
● Support for PCIe or Internal cabled (CFF) form factor adapters
● Support for NVMe drives connected to 940 RAID adapters (Tri-Mode) Storage HBAs available
● PCIe 3.0 and PCIe 4.0 adapter choices with support for Gen 5 adapters when available| ● Consistent RAID/HBA support
● Flexible config solution PCIe Gen 5 allows for greater storage performance
---|---|---|---
Networking| ● OCP 3.0 slot with PCIe Gen 4 interface (rear of server)
● Additional PCIe adapters supported 1GbE dedicated Management port| ● OCP 3.0 slot with PCIe x16 interface (rear or front of server)
● Additional PCIe adapters supported
● 1GbE dedicated Management port| ● Improved performance with PCIe Gen 5
● Optional front-accessible OCP slot
PCIe| ● Up to 3x PCIe slots (all rear)
● Additional OCP 3.0 slot (rear)
● Support up to 3x 75W GPUs
● All slots PCIe Gen4 At the rear, supports
either 3x slots (all LP) or 2x slots (LP + FH) Supports a RAID/HBA in CFF form factor (does not occupy a PCIe slot)| ● Up to 5x PCIe slots (3 rear, 2 front)
● Additional OCP 3.0 slot (front or rear)
● Support up to 4x 75W GPUs Mix of PCIe Gen4 or Gen5 slots
● At the rear, supports either 3x slots (all LP) or 2x slots (LP + FH)
● Supports a RAID/HBA in CFF form factor (does not occupy a PCIe slot)| ● More PCIe slots, up to 5 (3 rear, 2 front) + 1 ● OCP slot PCIe Gen 5 allows for greater I/O performance Flexible PCIe offerings Additional ● GPU support Up to 2x PCIe Gen5 slots
Management and security| ● Limited XClarity support with ASPEED 2500 BMC
● Tamper Switch security solution (intrusion switch)| ● Integrated XClarity Controller 2 Support for full ● XClarity toolset including XClarity Administrator
Platform Firmware Resiliency (PFR) hardware ● Root of Trust (RoT)Tamper Switch security solution (intrusion switch)| ● New XCC2 offers improved management capabilities Support for full XClarity toolset
● Silicon-level security solution
Power| ● 500W, 750W, 1100W
● AC Platinum/Titanium Hot Plug PSU
1100W -48VDC
Platinum general support
● 240V HVDC support for PRC customers
● Active-Standby mode| ● 750W, 1100W, 1800W AC
● Platinum/Titanium Hot Plug PSU
● 1100W -48VDC Platinum general support
● 240V HVDC support for PRC customers
● Active-Standby mode| ● Multiple PSU offerings to suit the configuration selected
● New ErP Lot 9-compliant offerings
● Support for Telco customers with -48V requirements
---|---|---|---

Components and connectors

The following figure shows the front of the server.The following figure shows the components visible from the rear of the server. As shown, there are four different configurations available, including two with rear-mounted drive bays: two 2.5-inch hot-swap drive bays (SAS, SATA or NVMe) or new 7mm thickness hot-swap drives (SATA or NVMe).The following figure shows the locations of key components inside the server.

System architecture

The following figure shows the architectural block diagram of the SR635 V3, showing the major components and their connections.

Standard specifications

The following table lists the standard specifications.
Table 2. Standard specifications

7D9G – 3 year warranty
Form factor| 1U rack.
Processor| One AMD EPYC 9004 Series processor (formerly codenamed “Genoa”). Supported processors up to 128 cores, core speeds of up to 4.1 GHz, and TDP ratings of up to 360W. Supports PCIe 5.0 for high performance I/O.
Chipset| Not applicable (platform controller hub functions are integrated into the processor)
Memory| 12 DIMM slots. The processor has 12 memory channels, with 1 DIMM per channel (DPC). Lenovo TruDDR5 RDIMMs, 3DS RDIMMs, and 9×4 RDIMMs are supported, up to 4800 MHz
Memory maximum| Up to 3TB with 12x 256GB 3DS RDIMMs
Persistent memory| Not supported
Memory protection| ECC, SDDC, Patrol/Demand Scrubbing, Bounded Fault, DRAM Address Command Parity with Replay, DRAM Uncorrected ECC Error Retry, On-die ECC, ECC Error Check and Scrub (ECS),Post Package Repair
Disk drive bays| Up to 12x 2.5-inch hot-swap drive bays:
● Front bays can be one of the following:

• * 4x 2.5-inch hot-swap SAS/SATA or NVMe

  • 8x 2.5-inch hot-swap SAS/SATA
  • 10x 2.5-inch hot-swap SAS/SATA, AnyBay or NVMe, or combinations
  • 16x E1.S hot-swap EDSFF NVMe

● Rear can be one of the following:

• * 2x 2.5-inch hot-swap SAS/SATA bays

  • 2x 2.5-inch hot-swap NVMe bays
  • 2x 7mm 2.5-inch hot-swap SATA bays
  • 2x 7mm 2.5-inch hot-swap NVMe bays

● Internal M.2 module supporting up to two M.2 drives (optional RAID support), for OS boot and drive storage support
Note: The SR635 V3 does not offer 3.5-inch drive bays.
See Storage configurations for details. AnyBay bays support SAS, SATA or NVMe drives. NVMe bays only support NVMe drives. Rear drive bays can be used in conjunction with 2.5-inch front drive bays. The server supports up to 12x NVMe drives all with direct connections (no oversubscription).

Maximum internal storage| ● 2.5-inch drives:

• * 368.64TB using 12x 30.72TB 2.5-inch SAS/SATA SSDs

  • 737.28TB using 12x 61.44TB 2.5-inch NVMe SSDs
  • 28.8TB using 12x 2.4TB 2.5-inch HDDs
  • 7.68TB using 2x 3.84TB 7mm SSDs

● EDSFF drives
122.88TB using 16x 7.68TB E1.S EDSFF NVMe SSDs

Storage controller| ● Onboard NVMe (no RAID) – 16 drives, each x4
● Onboard SATA (no RAID) – 12 drives
● 12 Gb SAS/SATA RAID adapters

• * 8 or 16 ports

  • Up to 8GB flash-backed cache
  • PCIe 4.0 or PCIe 3.0 host interface

● 12 Gb SAS/SATA HBA (non-RAID)

• * 8-port and 16-port

  • PCIe 4.0 or PCIe 3.0 host interface

Optical drive bays| No internal optical drive.
Tape drive bays| No internal backup drive.
Network interfaces| Dedicated OCP 3.0 SFF slot with PCIe 5.0 x16 host interface, either at the rear of the server (rearaccessible) or the front
of the server (front-accessible). Supports a variety of 2-port and 4-port adapters with 1GbE, 10GbE and 25GbE network
connectivity.
One port can optionally be shared with the XClarity Controller 2 (XCC2) management processor for Wake-on-LAN
and NC-SI support.
Additional PCIe network adapters supported in PCIe slots.
PCI Expansion slots| Up to 5x PCIe slots:
● Rear: Up to 3x PCIe slots plus a slot dedicated to an OCP adapter. Slot availability is based on riser selection and rear drive bay selection.
● Front: Two PCIe slots plus a slot dedicated to an OCP adapter. Front OCP slot is mutually exclusive with rear OCP slot.
Four choices for rear-access slots:
● 3x PCIe x16 low-profile slots
● 1x PCIe x16 full-height half-length slot + 1x PCIe x16 low-profile slot
● 1x PCIe x16 low-profile slot (also supports 2x rear 2.5-inch drive bays)
● 2x PCIe x16 low-profile slot (also supports 2x rear 7mm 2.5-inch drive bays)
For 2.5-inch front drive configurations, the server supports the installation of a CFF RAID adapter or HBA in a dedicated area that does not consume any of the PCIe slots.
PCIe slots at the front of the server:
● OCP slot (mutually exclusive with rear OCP slot)
● 1x PCIe x16 full-height half-length slot + 1x PCIe x16 low-profile slot
GPU support| Supports up to 4x single-wide GPUs
Ports| Front: 1x USB 3.1 G1 (5 Gb/s) port, 1x USB 2.0 port (also for XCC local management), External diagnostics port, optional VGA port.
Rear: 3x USB 3.1 G1 (5 Gb/s) ports, 1x VGA video port, 1x RJ-45 1GbE systems management port for XCC remote management. Optional 2nd XCC remote management port (installs in OCP slot).
Optional DB-9 COM serial port (installs in slot 3).
Internal: 1x USB 3.1 G1 (5 Gb/s) connector for operating system or license key purposes.
Cooling| p to 7x N+1 redundant hot swap 40 mm fans, configuration dependent. One fan integrated in each power supply. For high-performance CPUs, the SR635 V3 also uses a closed-loop liquid-cooled heatsink design to more effectively remove heat from the processor.
Power supply| Up to two hot-swap redundant AC power supplies, 80 PLUS Platinum or 80 PLUS Titanium certification. 750 W, 1100 W and 1800 W AC options, supporting 220 V AC. 750 W and 1100 W options also support 110V input supply. In China only, all power supply options support 240 V DC.
Also available is a 1100W power supply with a -48V DC input.
Video| Embedded video graphics with 16 MB memory with 2D hardware accelerator, integrated into the XClarity Controller. Maximum resolution is 1920×1200 32bpp at 60Hz.
Hot-swap parts| Drives, power supplies, and fans.
Systems management| Operator panel with status LEDs. Optional External Diagnostics Handset with LCD display. Models with 8x 2.5-inch front drive bays can optionally support an Integrated Diagnostics Panel. XClarity Controller 2 (XCC2) embedded management based on the ASPEED AST2600 baseboard management controller (BMC). Dedicated rear Ethernet port for XCC2 remote access for management. Optional 2nd redundant XCC2 remote port supported, installs in the OCP slot.
XClarity Administrator for centralized infrastructure management, XClarity Integrator plugins, and XClarity Energy Manager centralized server power management. Optional XCC Platinum to enable remote control functions and other features.
Security features| Chassis intrusion switch, Power-on password, administrator’s password, Root of Trust module supporting TPM 2.0 and Platform Firmware Resiliency (PFR). Optional lockable front security bezel.
Operating systems supported| Microsoft Windows Server, Microsoft Windows 10 & 11, Red Hat Enterprise Linux, SUSE Linux Enterprise Server, VMware ESXi, Ubuntu Server. See the Operating system support section for specifics.
Limited warranty| Three-year customer-replaceable unit and onsite limited warranty with 9×5 next business day (NBD).
Service and support| Optional service upgrades are available through Lenovo Services: 4-hour or 2-hour response time, 6-hour fix time, 1-year or 2-year warranty extension, software support for Lenovo hardware and some third-party applications.
Dimensions| Width: 440 mm (17.3 in.), height: 43 mm (1.7 in.), depth: 773 mm (30.4 in.). See Physical and electrical specifications for details.
Weight| Maximum: 20.2 kg (44.6 lb)

Models

ThinkSystem SR635 V3 models can be configured by using the Lenovo Data Center Solution Configurator (DCSC).
Topics in this section:

• CTO models
• CTO models for Windows 10 and Windows 11
• Base feature codes
• Preconfigured models

CTO models
ThinkSystem SR635 V3 models can be configured by using the Lenovo Data Center Solution Configurator (DCSC).
Configure-to-order (CTO) models are used to create models with factory- integrated server customizations.
For CTO models, two types of base CTO models are available for the SR635 V3 as listed in the columns in the following table:

• General purpose base CTO models are for general business (non-HPC) and is selectable by choosing General Purpose mode in DCSC.
• AI and HPC base models are intended for Artificial Intelligence (AI) and High Performance Computing (HPC) configurations and solutions are enabled using the AI & HPC Hardware – ThinkSystem Hardware mode in DCSC. These configurations, along with Lenovo EveryScale Solutions, can also be built using System x and Cluster Solutions Configurator (x-config). Tip: Some HPC and AI models are not listed in DCSC and can only be configured in x-config.

Controlled GPU models: The “Controlled GPU” base CTO models listed in the table are the only models that support high-performance GPUs and accelerators. These models are classified under US Government ECCN regulations and have limited market and customer availability. All other base models do not support high-performance GPUs.
Preconfigured server models may also be available for the SR635 V3, however these are region-specific;
that is, each region may define their own server models, and not all server models are available in every region.
The following table lists the base CTO models of the ThinkSystem SR635 V3 server.
Table 3. Base CTO models

Machine Type/Model General purpose| Machine Type/Model for AI and HPC| Description
---|---|---
7D9GCTO1WW| 7D9GCTOLWW| ThinkSystem SR635 V3 – 3yr Warranty
7D9GCTOAWW| 7D9GCTOHWW| ThinkSystem SR635 V3 – 3yr Warranty with Controlled GPU
7D9HCTO1WW| 7D9HCTOLWW| ThinkSystem SR635 V3 – 1yr Warranty

CTO models for Windows 10 and Windows 11
The SR635 V3 can run Windows 10 and Windows 11, however only a subset of adapters and drives can be installed. For ease of configuration, the following Base CTO models have been announced to assist building a configuration that can be used with the client operating systems. For more information, see the Windows 10 and Windows 11 section.
Table 4. Base CTO models for SR635 V3 with Windows 10 and Windows 11

Base feature codes
Models of the SR635 V3 are defined based on whether or not front PCIe slots are configured. The feature codes for these chassis bases are as listed in the following table.
Table 5. Chassis base feature codes

slots (2.5-inch and EDSFF drive bays)
BQ7M| ThinkSystem V3 1U 4×2.5″ Chassis with Front I/O Module| Configurations with front PCIe slots

Preconfigured models
The following tables list the available preconfigured models, grouped by region.

• Models for Australia and New Zealand

Refer to the Specifications section for information about standard features of the server.
Common to all models:

• Power supplies are Platinum unless otherwise stated
• All models include a Toolless Slide Rail Kit

Models for Australia and New Zealand
Common to all Australia and New Zealand models:

• All models include a Toolless Slide Rail Kit and Cable Management Arm

Table 6. Models for Australia and New Zealand

Model| AMD EPYC processor†| Memory| RAID| Drive bays| OCP| Slots| Power supply| Fans| Front VGA| Front diag| XCC2| Intru switch
---|---|---|---|---|---|---|---|---|---|---|---|---
TopSeller models with a 3-year warranty (machine type 7D9G)
7D9GA00WAU| 1x 9124 16C
200W 3.0G| 1x 16GB| 5350-8i| 8x 2.5″ SAS;
Open bay| Open| LP+FH
Gen4| 1x750W| 6x Perf| Yes| Yes| Std| Opt
7D9GA00XAU| 1x 9124 16C
200W 3.0G| 1x 32GB
2Rx8| 9350-8i| 8x 2.5″ SAS;
Open bay| Open| LP+FH
Gen4| 1x750W| 6x Perf| Yes| Yes| Std| Opt

† Processor description: Processor model, number of cores, thermal design power (TDP), core frequency

Processors

The SR635 V3 supports processors in the fourth-generation AMD EPYC family of processors. The server supports one processor.
Topics in this section:

• Processor options
• Processor features
• Thermal requirements by processor
• Closed-loop liquid-cooled heatsink
• UEFI operating modes
• Platform Secure Boot

Processor options

The table below lists the AMD processors that are currently supported by the SR635 V3.
All supported processors have the following characteristics:

• Fourth-generation AMD EPYC processors (formerly codenamed “Genoa”)
• 12 DDR5 memory channels
• 128 PCIe 5.0 I/O lanes, 64 lanes available for PCIe and NVMe devices

The SR635 V3 also supports the new 4th Gen AMD EPYC processors with “Zen 4c” architecture (formerly codenamed “Bergamo”). These processors have higher core counts, up to 128 cores, targeted at cloud native applications that are designed to exploit the scale, elasticity, resiliency, and flexibility of private & public clouds.
Table 7. SR635 V3 processor support

4th Gen AMD EPYC processors (“Genoa”)
BREE| 9124| ThinkSystem AMD EPYC 9124 16C 200W 3.0GHz Processor| 1
BREJ| 9174F| ThinkSystem AMD EPYC 9174F 16C 320W 4.1GHz Processor| 1
BREH| 9224| ThinkSystem AMD EPYC 9224 24C 200W 2.5GHz Processor| 1
BRED| 9254| ThinkSystem AMD EPYC 9254 24C 200W 2.9GHz Processor| 1
BREF| 9274F| ThinkSystem AMD EPYC 9274F 24C 320W 4.05GHz Processor| 1
BREC| 9334| ThinkSystem AMD EPYC 9334 32C 210W 2.7GHz Processor| 1
BR30| 9354| ThinkSystem AMD EPYC 9354 32C 280W 3.25GHz Processor| 1
BREG| 9354P| ThinkSystem AMD EPYC 9354P 32C 280W 3.25GHz Processor| 1
BR32| 9374F| ThinkSystem AMD EPYC 9374F 32C 320W 3.85GHz Processor| 1
BREB| 9454| ThinkSystem AMD EPYC 9454 48C 290W 2.75GHz Processor| 1
BREM| 9454P| ThinkSystem AMD EPYC 9454P 48C 290W 2.75GHz Processor| 1
BR31| 9474F| ThinkSystem AMD EPYC 9474F 48C 360W 3.6GHz Processor| 1
BREA| 9534| ThinkSystem AMD EPYC 9534 64C 280W 2.45GHz Processor| 1
BPVJ| 9554| ThinkSystem AMD EPYC 9554 64C 360W 3.1GHz Processor| 1
BREL| 9554P| ThinkSystem AMD EPYC 9554P 64C 360W 3.1GHz Processor| 1
BR2Z| 9634| ThinkSystem AMD EPYC 9634 84C 290W 2.25GHz Processor| 1
BPVK| 9654| ThinkSystem AMD EPYC 9654 96C 360W 2.4GHz Processor| 1
BREK| 9654P| ThinkSystem AMD EPYC 9654P 96C 360W 2.4GHz Processor| 1
4th Gen AMD EPYC processors with Zen 4c architecture (“Bergamo”)
BW9S| 9734| ThinkSystem AMD EPYC 9734 112C 340W 2.2GHz Processor| 1
BW9T| 9754| ThinkSystem AMD EPYC 9754 128C 360W 2.25GHz Processor| 1

Processor features
The following table lists the features of the supported processors.
Table 8. Processor specifications

EPYC model| Cores / Threads| Base Frequency| Max Boost Frequency†| L3 Cache| Memory channels| Memory bus| TDP
---|---|---|---|---|---|---|---
4th Gen AMD EPYC processors (“Genoa”)
9124| 16 / 32| 3.0 GHz| 3.7 GHz| 64 MB| 12| 4800 MHz| 200W
9174F| 16 / 32| 4.1 GHz| 4.4 GHz| 256 MB| 12| 4800 MHz| 320W
9224| 24 / 48| 2.5 GHz| 3.7 GHz| 64 MB| 12| 4800 MHz| 200W
9254| 24 / 48| 2.9 GHz| 4.15 GHz| 128 MB| 12| 4800 MHz| 200W
9274F| 24 / 48| 4.05 GHz| 4.3 GHz| 256 MB| 12| 4800 MHz| 320W
9334| 32 / 64| 2.7 GHz| 3.9 GHz| 128 MB| 12| 4800 MHz| 210W
9354| 32 / 64| 3.25 GHz| 3.8 GHz| 256 MB| 12| 4800 MHz| 280W
9354P| 32 / 64| 3.25 GHz| 3.8 GHz| 256 MB| 12| 4800 MHz| 280W
9374F| 32 / 64| 3.85 GHz| 4.3 GHz| 256 MB| 12| 4800 MHz| 320W
9454| 48 / 96| 2.75 GHz| 3.8 GHz| 256 MB| 12| 4800 MHz| 290W
---|---|---|---|---|---|---|---
9454P| 48 / 96| 2.75 GHz| 3.8 GHz| 256 MB| 12| 4800 MHz| 290W
9474F| 48 / 96| 3.6 GHz| 4.1 GHz| 256 MB| 12| 4800 MHz| 360W
9534| 64 / 128| 2.45 GHz| 3.7 GHz| 256 MB| 12| 4800 MHz| 280W
9554| 64 / 128| 3.1 GHz| 3.75 GHz| 256 MB| 12| 4800 MHz| 360W
9554P| 64 / 128| 3.1 GHz| 3.75 GHz| 256 MB| 12| 4800 MHz| 360W
9634| 84 / 168| 2.25 GHz| 3.7 GHz| 384 MB| 12| 4800 MHz| 290W
9654| 96 / 192| 2.4 GHz| 3.7 GHz| 384 MB| 12| 4800 MHz| 360W
9654P| 96 / 192| 2.4 GHz| 3.7 GHz| 384 MB| 12| 4800 MHz| 360W
4th Gen AMD EPYC processors with Zen 4c architecture (“Bergamo”)
9734| 112 / 224| 2.2 GHz| 3.0 GHz| 256 MB| 12| 4800 MHz| 340W
9754| 128 / 256| 2.25 GHz| 3.2 GHz| 256 MB| 12| 4800 MHz| 360W

† The maximum single-core frequency that the processor is capable of operating
Thermal requirements by processor
For processors with a TDP of 320W or more (with some exceptions), the server must be configured as follows (one or both):
Configure the closed-loop liquid-cooled heatsink (derived feature BSH6, enabled using feature
BSWC), as described in the Closed-loop liquid-cooled heatsink section below
Limit the drive backplanes used to only one of the 4-bay front drive backplanes (features BCGB or BPC9 as described in the Front drive bays section)
Exceptions to this rule (certain processor SKUs, drive-bay configurations, and ambient temperatures) are documented in the Thermal Rules section in the Lenovo Docs site for the SR635 V3: https://pubs.lenovo.com/sr635-v3/thermal_rules
The SR635 V3 supports different processor heatsink solutions, depending on the configuration, as listed in the following table.
Table 9. Heatsinks

The selection of the heatsink will be automatically derived by the configurator and depends on the processor and other components selected. Use the tables in the Lenovo Docs site to determine the requirements for each heatsink: https://pubs.lenovo.com/sr635-v3/thermal_rules
Closed-loop liquid-cooled heatsink
The closed-loop liquid-cooled heatsink is primarily used for processors with a TDP of 320W or more. Without the closed-loop heatsink, the use of processors ≥ 320W TDP (except for 9654 and 9654P) requires that only 4x front 2.5-inch drive bays be configured. The use of the closed-loop heatsink allows for 10x SAS/SATA or NVMe drives bays.
The only exception to this rule is the use of the 9654 and 9654P 360W processors which allow the use of 10x 2.5-inch drive bays, provided the ambient temperature be no more than 25°C.
The following figure shows the placement of the components in the closed-loop system. A cold plate is mounted on top of the processor and it is connected via aluminum tubes to a radiator that is placed in front of the system fans. The tubes contain a mixture of water and ethylene glycol (EGW). The liquid is actively pumped through the pipes in a closed loop to remove the heat from the processors.

To enable closed-loop liquid-cooled heatsink in the DCSC configurator:

1. In the Base tab, select Base as ThinkSystem V3 1U 10×2.5″ Chassis (feature BLK4)
2. Select Datacenter Environment of 25 Degrees Celsius (feature BL0H)
3. In the Processor tab, select ThinkSystem SR635 V3 Neptune Liquid to Air Module (feature BSWC)
4. Select a processor with TDP ≥ 320W

The closed-loop liquid-cooled heatsink has the following requirements:

• One of the following 2.5-inch front drive bay configurations:
  • 10x 2.5″ NVMe Gen4 (not Gen5)
  • 10x 2.5″ SAS/SATA
  • 8x 2.5” SAS/SATA
  • 6x SAS/SATA + 4x AnyBay
  • 6x SAS/SATA + 2x AnyBay + 2x NVMe
• EDSFF front drive bays are not supported
• If a RAID 940 or 9350 adapter is configured:
  • RAID supercap must be installed in slot 3
  • 7mm drives are not supported
• The following components are not supported:
  • q256GB 3DS RDIMMs
  • Rear 2.5-inch drives
  • M.2 drives
  • Any internal RAID/HBAs (CFF form factor)

For specific requirements, see the Thermal Rules page at https://pubs.lenovo.com/sr635-v3/thermal_rules.

UEFI operating modes

The SR635 V3 offers preset operating modes that affect energy consumption and performance. These modes are a collection of predefined low-level UEFI settings that simplify the task of tuning the server to suit your business and workload requirements.
The following table lists the feature codes that allow you to specify the mode you wish to preset in the factory for CTO orders.
Table 10. UEFI operating mode presets in DCSC

The preset modes for the SR635 V3 are as follows:

• Maximum Efficiency Mode (feature BFYA): Maximizes performance/watt efficiency while maintaining reasonable performance
• Maximum Performance Mode (feature BFYB): Achieves maximum performance but with higher power consumption and lower energy efficiency.

For details about these preset modes, and all other performance and power efficiency UEFI settings offered in the SR635 V3, see the paper “Tuning UEFI Settings for Performance and Energy Efficiency on AMD Processor-Based ThinkSystem Servers”, available from https://lenovopress.lenovo.com/lp1267.

Platform Secure Boot

Platform Secure Boot (PSB) is a feature of AMD EPYC processors that helps defend against threats to firmware. It is designed to provide protection in response to growing firmware-level remote attacks being seen across the industry. AMD Secure Boot extends the AMD silicon root of trust to help protect the system by establishing an unbroken chain of trust from the AMD silicon root of trust to the BIOS. The UEFI secure boot helps continue the chain of trust from the system BIOS to the OS Bootloader. This feature helps defend against remote attackers seeking to embed malware into firmware.
With PSB enabled, the processor is cryptographically bound to the server firmware code signing key once the processors are installed in the server and the server is powered on. From that point on, that processor can only be used with motherboards that use the same code signing key.
Disabling PSB will stop the protection against remote and local attackers seeking to embed malware into a platform’s firmware, BIOS and even UEFI functions. Disabling PSB also allows you to install the processor in another server that you purchased from Lenovo, however, we do not recommend you do this by yourself.
Please contact the Lenovo service team for further assistance.
By default, the server has Platform Secure Boot enabled on the installed processors, however for factory orders, you can choose to have the server with PSB disabled. To do this, select feature code C18D as listed in the following table. PSB can be later enabled in System Setup if desired.
Cannot be disabled once enabled: Once you enable PSB in a server, it cannot be disabled on those processors.
Table 11. Platform Secure Boot

later be disabled. Default choice in DCSC.
C18D| Platform Secure Boot Disable| PSB is not enabled in the factory. It can be later enabled in UEFI System Setup if desired.

If you add a second processor as a field upgrade and your server has PSB enabled, then as soon as you install the processor and power the server on, the processor is then cryptographically bound to the server, and can only be used in that server going forward.
Note: Platform Secure Boot (PSB) is different from the Secure Boot security feature described in the
Platform Firmware Resiliency section.

Memory options

The SR635 V3 uses Lenovo TruDDR5 memory operating at up to 4800 MHz. The server supports up to 12 DIMMs. The processor has 12 memory channels and supports 1 DIMM per channel. The server supports up to 3TB of memory using 12x 256GB 3DS RDIMMs.
The following table lists the memory options that are available for the server.
Lenovo TruDDR5 memory uses the highest quality components that are sourced from Tier 1 DRAM suppliers and only memory that meets the strict requirements of Lenovo is selected. It is compatibility tested and tuned to maximize performance and reliability. From a service and support standpoint, Lenovo TruDDR5 memory automatically assumes the system warranty, and Lenovo provides service and support worldwide.
Table 12. Memory options

Part number| Feature code| Description| DRAM technology
---|---|---|---
9×4 RDIMMs
4X77A81439| BQ3E| ThinkSystem 32GB TruDDR5 4800MHz (1Rx4) 9×4 RDIMM- A| 16Gb
4X77A81442| BQ36| ThinkSystem 64GB TruDDR5 4800MHz (2Rx4) 9×4 RDIMM- A| 16Gb
10×4 RDIMMs
4X77A81438| BQ39| ThinkSystem 32GB TruDDR5 4800MHz (1Rx4) 10×4 RDIMM-A| 16Gb
4X77A81441| BQ3D| ThinkSystem 64GB TruDDR5 4800MHz (2Rx4) 10×4 RDIMM-A| 16Gb
4X77A81448| BUVV| ThinkSystem 96GB TruDDR5 4800MHz (2Rx4) 10×4 RDIMM-A| 24Gb
x8 RDIMMs
4X77A81437| BQ3C| ThinkSystem 16GB TruDDR5 4800MHz (1Rx8) RDIMM-A| 16Gb
4X77A81440| BQ37| ThinkSystem 32GB TruDDR5 4800MHz (2Rx8) RDIMM-A| 16Gb
4X77A81447| BUVU| ThinkSystem 48GB TruDDR5 4800MHz (2Rx8) RDIMM-A| 24Gb
10×4 3DS RDIMMs
4X77A81443| BQ3A| ThinkSystem 128GB TruDDR5 4800MHz (4Rx4) 3DS RDIMM-A v2| 16Gb
CTO only| BYEE| ThinkSystem 128GB TruDDR5 4800MHz (4Rx4) 3DS RDIMM-A v1| 16Gb
4X77A81444| BQ3B| ThinkSystem 256GB TruDDR5 4800MHz (8Rx4) 3DS RDIMM-A v2| 16Gb
CTO only| BZPN| ThinkSystem 256GB TruDDR5 4800MHz (8Rx4) 3DS RDIMM-A v1| 16Gb

9×4 RDIMMs (also known as Optimized or EC4 RDIMMs) are a new lower-cost DDR5 memory option supported in ThinkSystem V3 servers. 9×4 DIMMs offer the same performance as standard RDIMMs (known as 10×4 or EC8 modules), however they support lower fault-tolerance characteristics. Standard RDIMMs and 3DS RDIMMs support two 40-bit subchannels (that is, a total of 80 bits), whereas 9×4 RDIMMs support two 36-bit subchannels (a total of 72 bits). The extra bits in the subchannels allow standard RDIMMs and 3DS RDIMMs to support Single Device Data Correction (SDDC), however 9×4 RDIMMs do not support SDDC.
Note, however, that all DDR5 DIMMs, including 9×4 RDIMMs, support Bounded Fault correction, which enables the server to correct most common types of DRAM failures.

For more information on DDR5 memory, see the Lenovo Press paper, Introduction to DDR5 Memory,available from https://lenovopress.com/lp1618.
The following rules apply when selecting the memory configuration:

• The SR635 V3 supports quantities 1, 2, 4, 6, 8, 10, 12 DIMMs per processor; other quantities not supported
• The server supports four types of DIMMs: 9×4 RDIMMs, 10×4 RDIMMs, x8 RDIMMs and 3DS RDIMMs
  • UDIMMs and LRDIMMs are not supported
• Mixing of DIMM types is not supported (for example, 9×4 DIMMs with 10×4 RDIMMs)
• Mixing x4 and x8 DIMMs is not supported
• Mixing of DRAM technology (16Gb and 24Gb) is not supported. See the column in the above table.
• Mixing of 128GB 3DS RDIMMs and 256GB 3DS RDIMMs is not supported
• Mixing of DIMM rank counts is supported. Follow the required installation order installing the DIMMs with the higher rank counts first.
• Mixing of DIMM capacities is supported, however only two different capacities are supported across all channels of the processor (eg 16GB and 32GB). Follow the required installation order installing the larger DIMMs first.
• The use of the 128GB 3D RDIMM feature BYEE has the following requirements for thermal reasons:
  • Performance fans are required
  • Rear 2.5-inch drives are not supported
  • GPUs are not supported
  • Additional ambient temperature requirements – see https://pubs.lenovo.com/sr635v3/thermal_rules for information

Note: Memory mirroring and memory rank sparing are not supported.
For best performance, consider the following:
Ensure the memory installed is at least the same speed as the memory bus of the selected processor.
Populate all 12 memory channels with identical DIMMs (same Lenovo part number)
The following memory protection technologies are supported:

• ECC detection/correction
• Bounded Fault detection/correction
• SDDC (for x4-based memory DIMMs; look for “x4” in the DIMM description. Not supported with 9×4 RDIMMs)
• Patrol/Demand Scrubbing
• DRAM Address Command Parity with Replay
• DRAM Uncorrected ECC Error Retry
• On-die ECC
• ECC Error Check and Scrub (ECS)
• Post Package Repair

Internal storage

The SR635 V3 supports 12x 2.5-inch or 16x EDSFF drive bays, depending on the selected chassis and backplane configuration. The server also supports configurations without any drive bays if desired.
No 3.5-inch drive bay support: The SR635 V3 does not support configurations with 3.5-inch drive bays.

The two drive bay zones are as follows:

• Front:
  • Up to 10x 2.5-inch hot-swap bays, or
  • 16x EDSFF hot-swap bays
• Rear:
  • 2x 2.5-inch hot-swap bays, or
  • 2x 7mm hot-swap drives bays

All drives are hot-swap and are accessible from the front or from the rear.
The server also supports one or two M.2 drives, installed in an M.2 adapter internal to the server.
In this section:

• NVMe drive support
• Front drive bays
• Rear 2.5-inch and 7mm drive bays
• Storage configurations
• Field upgrades
• RAID flash power module (supercap) support
• M.2 drives
• SED encryption key management with SKLM

NVMe drive support
The SR635 V3 supports NVMe drives to maximize storage performance:

• In 2.5-inch front drive configurations, the server supports up to 12 NVMe drives without oversubscription (that is, each x4 drive has a dedicated x4 connection (4 lanes) to the processor):
  • 10x 2.5-inch NVMe drives at the front
  • 2x 2.5-inch NVMe drives at the rear
• In EDSFF front drive configurations, the server supports up to 16 NVMe drives without oversubscription:
  • 16x E1.S NVMe drives at the front

The specifics of these configurations are covered in the Storage configurations section.”
In addition, the SR635 V3 supports two 7mm NVMe drives for use as boot drives. These two drives optionally support RAID via a separate RAID adapter installed in a PCIe slot.
The RAID 940-8i and RAID 940-16i adapters also support NVMe through a feature named Tri-Mode support (or Trimode support). This feature enables the use of NVMe U.3 drives at the same time as SAS and SATA drives. Tri-Mode requires an AnyBay backplane. Cabling of the controller to the backplanes is the same as with SAS/SATA drives, and the NVMe drives are connected via a PCIe x1 link to the controller.
NVMe drives connected using Tri-Mode support provide better performance than SAS or SATA drives: A SATA SSD has a data rate of 6Gbps, a SAS SSD has a data rate of 12Gbps, whereas an NVMe U.3 Gen 4 SSD with a PCIe x1 link will have a data rate of 16Gbps. NVMe drives typically also have lower latency and higher IOPS compared to SAS and SATA drives. Tri-Mode is supported with U.3 NVMe drives in either 2.5inch and 3.5-inch form factor and requires an AnyBay backplane.
Tri-Mode requires U.3 drives: Only NVMe drives with a U.3 interface are supported. U.2 drives are not supported. See the Internal drive options section for the U.3 drives supported by the server.
Front drive bays The front drive bay zone supports the following configurations. All drives are hot-swap.
Front drive bays
The front drive bay zone supports the following configurations. All drives are hot-swap.

• 2.5-inch hot-swap drive bays – 10 drive bays
  • 10x SAS/SATA
  • 6x SAS/SATA + 4x AnyBay (PCIe Gen4)
  • 6x SAS/SATA + 2x AnyBay + 2x NVMe (PCIe Gen4)
  • 10x AnyBay (PCIe Gen4 or Gen5)
  • 10x NVMe (PCIe Gen4)
• 2.5-inch hot-swap drive bays – 8 drive bays with optional integrated diagnostics panel
  • 8x SAS/SATA
• 2.5-inch hot-swap drive bays – 4 drive bays with optional support for front PCIe slots
  • 4x SAS/SATA
  • 4x NVMe (PCIe Gen4 or Gen 5)
• EDSFF drive bays
  • 16x E1.S (9.5mm or 15mm) hot-swap NVMe drive bays (PCIe Gen4)
• Drive-less 2.5-inch configuration – No backplane and no drives (supports field upgrades)

No 3.5-inch drive bay support: The SR635 V3 does not support configurations with 3.5-inch drive bays.
These configurations are shown in the following three figure. The feature codes listed correspond to the feature codes listed in the table below the figures.
The following figure shows the supported 2.5-inch drive bays drive bay configurations without PCIe slot support. 8x 2.5-inch drive configurations can be configured with or without an Integrated Diagnostics Panel with pull-out LCD display. See the Local management section for details.The following figure shows the supported 2.5-inch drive bays drive bay configurations with front PCIe slot support. Front slots are mutually exclusive with rear slots. See the I/O expansion for details.The backplanes used to provide these drive bays are listed in the following table.
Field upgrades: Most front backplanes are available as part numbers for field upgrades using upgrade kits, as described in the Field upgrades section below.
Table 13. Backplanes for front drive bays

Feature code| Description| PCIe Gen| Maximum supported
---|---|---|---
Front 2.5-inch drive backplanes – 4 drive bays – no support for front PCIe slots
BCGB| ThinkSystem 1U 4×2.5″ SAS/SATA Backplane| –| 1
BPC9| ThinkSystem 1U 4x 2.5″ NVMe Gen 4 Backplane| Gen4| 1
BT1N| ThinkSystem V3 1U 4×2.5″ Gen5 NVMe Backplane| Gen5| 1
Front 2.5-inch drive backplanes – 8 drive bays
B8N0| ThinkSystem 1U 8×2.5″ SAS/SATA Backplane| –| 1
Front 2.5-inch drive backplanes – 10 drive bays
BHU8| ThinkSystem 1U 10×2.5″ SAS/SATA Backplane| –| 1
B8MX| ThinkSystem 1U 10×2.5″ (6x SAS/SATA 4x AnyBay) Backplane| Gen4| 1
BCQP| ThinkSystem 1U 10×2.5″ (6x SAS/SATA 2x AnyBay 2x NVMe) Backplane| Gen4| 1
BB3T| ThinkSystem 1U 10×2.5″ AnyBay Backplane| Gen4| 1
BLKC| ThinkSystem V3 1U 10×2.5″ AnyBay Gen5 Backplane| Gen5| 1
BCQQ| ThinkSystem 1U 10×2.5″ NVMe Backplane| Gen4| 1
BRQX| ThinkSystem 1U 2.5″ 10 NVMe Gen5 Backplane| Gen5| 1
Front EDSFF drive backplanes
B981| ThinkSystem 1U 16xEDSFF Backplane| Gen4| 1
Front 2.5-inch drive backplanes – 4 drive bays – with front PCIe slot support
BT1P| ThinkSystem V3 1U Front I/O 4×2.5″ Gen5 AnyBay Backplane| Gen5| 1
BV8J| ThinkSystem V3 1U 4×2.5″ Gen4 NVMe Backplane with 4×2.5″ Chassis| Gen4| 1
BT1Q| ThinkSystem V3 1U Front I/O 4×2.5″ Gen5 NVMe Backplane| Gen5| 1

Rear 2.5-inch and 7mm drive bays
The SR635 V3 supports hot-swap drives installed at the rear of the server chassis. Supported configurations are as follows:

• 2x 2.5-inch hot-swap SAS/SATA drive bays
• 2x 2.5-inch hot-swap NVMe drive bays (PCIe Gen 4)
• 2x 7mm SAS/SATA drive bays
• 2x 7mm NVMe drive bays (PCIe Gen 4)

The configurations are shown in the following figure.The backplanes used to provide these drive bays in CTO orders are listed in the following table.
Backplanes are also available as part numbers for field upgrades using upgrade kits, as described in the Field upgrades section below.
The SR635 V3 supports two 7mm drive options installed in slot 3:

• 7mm drive backplane supporting SATA or NVMe drives, without integrated RAID. Optional RAID functionality is provided by a separate RAID adapter installed in a slot.
• 7mm drive backplane supporting NVMe drives (no SATA support) with integrated RAID support via an onboard Marvell 88NR2241 NVMe RAID controller

Table 14. Backplanes for rear drive bays

Rear – 2.5-inch drive backplanes
B8MY| ThinkSystem 1U 2×2.5″ SAS/SATA Rear Backplane| 1
BDY6| ThinkSystem 1U 2×2.5″ NVMe Rear Backplane| 1
Rear – 7mm drive backplane
BU0N| ThinkSystem 7mm SATA/NVMe 2-Bay Rear Enablement Kit v2| 1
B8Q2| ThinkSystem 1U 7mm Drive Kit w/ NVMe RAID (Marvell RAID)| 1
BYFG| ThinkSystem 7mm SATA/NVMe 2-Bay Rear Hot-Swap RAID Enablement Kit (Broadcom RAID)| 1
Hardware RAID support for ThinkSystem 7mm SATA/NVMe 2-Bay Rear Enablement Kit v2 (BU0N) (optional)
BT7N| ThinkSystem RAID 5350-8i for M.2/7mm SATA Boot Enablement| 1
BT7P| ThinkSystem RAID 540-8i for M.2/7mm NVMe Boot Enablement| 1

The use of rear 2.5-inch drive bays has the following configuration rules:

• With 2.5-inch rear drive bays, only slot 1 is available. Slot 2 and 3 are not available

• GPUs are not supported
  The use of the 7mm rear drive bays has the following configuration rules:

• 7mm rear drive bays occupy slot 3; slots 1 and 2 are available and slot 2 is a low profile slot. Slot 3 is not available.

• M.2 RAID and 7mm RAID are mutually exclusive: they are not supported together in the same configuration

• GPUs are not supported

• For ThinkSystem 7mm SATA/NVMe 2-Bay Rear Enablement Kit v2 (feature BU0N):

  • The 7mm drive bays support either SATA drives or NVMe drives but not both. You specify SATA or NVMe in the configurator using feature codes BTTV (SATA) or BTTW (NVMe).
  • If RAID support is not required, the 7mm drives connect to an onboard port; No additional adapter is required
  • If RAID support is required, select feature code BS7A in the configurator to enable RAID The support of RAID-1 with the 7mm drives requires an additional RAID adapter that is installed in PCIe slot 1 or 2:
  • RAID support for 7mm SATA drives requires a RAID 5350-8i adapter (feature BT7N)
  • RAID support for 7mm NVMe drives requires a RAID 540-8i adapter operating in TriMode (feature BT7P)
  • The RAID adapter used for 7mm drive support cannot be configured for use with other drive bays (not even with M.2)

• For ThinkSystem 1U 7mm Drive Kit w/ NVMe RAID (feature B8Q2)

  • The adapter only supports NVMe drives
  • RAID functionality is integrated into the M.2 adapter using a Marvell 88NR2241 NVMe RAID Controller

• For ThinkSystem 7mm SATA/NVMe 2-Bay Rear Hot-Swap RAID Enablement Kit (feature BYFG)

  • The 7mm drive bays support either SATA drives or NVMe drives but not both.
  • RAID functionality is integrated into the 7mm backplane using a Broadcom RAID Controller

Storage configurations

This section describes the various combinations of front and rear drives that the server supports, as well as M.2 support.

Tip: These tables are based on Config Matrix V2.70 in TRD V1.6
In this section:

• Overview of configurations
• Details of configurations without front slots
• Details of configurations with front slots

The following tables summarize the storage configurations for the SR635 V3. For details, including
processor requirements, M.2 and 7mm support, and controller selections, see the Storage configurations Details section.
Overview – 2.5-inch front bays without front slots
The following table summarizes the configurations that use 2.5-inch front drive bays but do not support front PCIe slots.
Click to jump down to the details of the 2.5-inch configurations without front slots .

Table 15. Overview – 2.5-inch front bays without front slots

Config| Total drives (NVMe)| Front| Rear| Backplanes
---|---|---|---|---
SAS/ SATA| Any Bay| NVMe| EDSFF| 2.5″ SAS| 2.5″ NVMe
1| 10 (4)| 6| 4| 0| 0| 0| 0| 6xSAS/SATA + 4xAnyBay G4 (B8MX)
3| 10 (4)| 6| 2| 2| 0| 0| 0| 6xSAS/SATA + 2xAnyBay G4 + 2xNVMe G4 (BCQP)
5| 12 (4)| 6| 4| 0| 0| 2| 0| Front : 6xSAS/SATA + 4xAnyBay G4 (B8MX);
Rear : 2×2.5″ SAS/SATA (B8MY)
9| 10 (10)| 0| 10| 0| 0| 0| 0| 10×2.5″ AnyBay G4 (BB3T)
10| 10 (10)| 0| 10| 0| 0| 0| 0| 10×2.5″ AnyBay G4 (BB3T)
14| 8 (0)| 8| 0| 0| 0| 0| 0| 8×2.5″ SAS/SATA (B8N0)
17| 16 (16)| 0| 0| 0| 16| 0| 0| 16xE1.S G4 (B981)
19| 4 (0)| 4| 0| 0| 0| 0| 0| 4×2.5″ SAS/SATA (BCGB)
20| 10 (10)| 0| 0| 10| 0| 0| 0| 10×2.5″ NVMe G4 (BCQQ)
20| 12 (12)| 0| 0| 10| 0| 0| 2| Front : 10×2.5″ NVMe G4 (BCQQ);
Rear : 2×2.5″ NVMe G4 (BDY6)
25| 10 (10)| 0| 10| 0| 0| 0| 0| 10×2.5″ AnyBay G5 (BLKC)
30| 10 (0)| 10| 0| 0| 0| 0| 0| 10x SAS/SATA (BHU8)
31| 12 (0)| 10| 0| 0| 0| 2| 0| Front : 10x SAS/SATA (BHU8);
Rear : 2×2.5″ SAS/SATA (B8MY)
32| 12 (2)| 10| 0| 0| 0| 0| 2| Front : 10x SAS/SATA (BHU8);
Rear : 2×2.5″ NVMe G4 (BDY6)
33| 8 (8)| 0| 8| 0| 0| 0| 0| 10×2.5″ AnyBay G4 (BB3T) (8 bays max)
35| 10 (10)| 0| 0| 10| 0| 0| 0| 10×2.5″ NVMe G5 (BRQX)
35| 12 (12)| 0| 0| 10| 0| 0| 2| Front : 10×2.5″ NVMe G5 (BRQX);
Rear : 2×2.5″ NVMe G4 (BDY6)
35| 8 (8)| 0| 0| 8| 0| 0| 0| 10×2.5″ NVMe G5 (BRQX) (8 bays max)
36| 4 (4)| 0| 0| 4| 0| 0| 0| 4x 2.5″ NVMe (BT1N)
38| 4 (4)| 0| 0| 4| 0| 0| 0| 4×2.5″ NVMe G4 (BPC9)

Overview – 2.5-inch front bays with front slots
The following table summarizes the configurations that use 2.5-inch front drive bays and support front PCIe slots.
Click to jump down to the details of the 2.5-inch configurations with front slots .
Table 16. Overview – 2.5-inch front bays with front slots

Config| Total drives (NVMe)| Front| Rear| Backplanes
---|---|---|---|---
SAS/ SATA| Any Bay| NVMe| EDSFF| 2.5″ SAS| 2.5″ NVMe
24| 4 (4)| 0| 4| 0| 0| 0| 0| 4x 2.5″ AnyBay G5 (BT1P)
24| 4 (4)| 0| 0| 4| 0| 0| 0| 4x 2.5″ NVMe G5 (BT1Q)
24| 6 (4)| 0| 4| 0| 0| 2| 0| Front : 4x 2.5″ AnyBay G5 (BT1P);
Rear : 2×2.5″ SAS/SATA (B8MY)
37| 4 (4)| 0| 0| 4| 0| 0| 0| 4×2.5″ NVMe G4 (BV8J)

Details of configurations without front slots
The following table lists the detailed configurations that use 2.5-inch front drive bays without front PCIe slots.
Click to go back to the overview of 2.5-inch configurations without front slots .
In the table:

• 7mm SATA Non-RAID means the 7mm SATA/NVMe kit (BU0N) with SATA drives. RAID is not supported.
• 7mm NVMe Non-RAID means the 7mm SATA/NVMe kit (BU0N) with NVMe drives. RAID is not supported.
• 7mm RAID means the 7mm NVMe RAID B8Q2) with NVMe drives. SATA drives not supported.
• RAID-0 and RAID-1 are supported with the integrated Marvell RAID controller.
• 7mm SATA with SFF RAID 5350-8i means the 7mm SATA/NVMe kit (BU0N) with SATA drives.
• NVMe drives not supported. RAID is supported with the addition of the RAID 5350-8i adapter in a rear slot.
• 7mm NVMe with SFF RAID 540-8i means the 7mm SATA/NVMe kit (BU0N) with NVMe drives.
• SATA drives not supported. RAID is supported with the addition of the RAID 540-8i adapter in a rear slot.
• M.2 x1 SATA Non-RAID means the M.2 SATA/NVMe adapter (4Y37A09738) with SATA drives.
• RAID is not supported.
• M.2 x1 NVMe Non-RAID means the M.2 SATA/NVMe adapter (4Y37A09738) with NVMe drives.
• RAID is not supported.
• M.2 x4 SATA/NVMe Non-RAID means the M.2 SATA/x4 NVMe adapter (4Y37A79663) with either SATA or NVMe drives. RAID is not supported.
• M.2 NVMe RAID means the M.2 RAID NVMe adapter (B8P9) with NVMe drives. SATA drives not supported. RAID-0 and RAID-1 are supported with the integrated Marvell RAID controller.
• M.2 x4 SATA + RAID 5350-8i means the M.2 SATA/x4 NVMe adapter (4Y37A79663) with SATA drives. RAID is supported with the addition of the RAID 5350-8i adapter in a rear slot.
• M.2 x4 NVMe + RAID 540-8i means the M.2 SATA/x4 NVMe adapter (4Y37A79663) with NVMe drives. RAID is supported with the addition of the RAID 540-8i adapter in a rear slot.

Table 17. Details of configurations without front slots

Details – 2.5-inch front bays with front slots
The following table lists the detailed configurations that use 2.5-inch front drive bays without front PCIe slots.
Click to go back to the overview of 2.5-inch configurations with front slots .
Table 18. Details – 2.5-inch front bays with front slots Field upgrades
The SR635 V3 is orderable without drive bays, allowing you to add a backplane, cabling and controllers as field upgrades.
In this section:

• 2.5-inch, 3.5-inch and EDSFF field upgrades
• Upgrades to an Internal (CFF) HBA/RAID adapter
• 7mm drive bay field upgrades

2.5-inch, 3.5-inch and EDSFF field upgrades
Rear backplane kits included cables, however for front drive bays, the backplane kits do not include cables and must be ordered separately. The following table summarizes the option part numbers you will need to order for each available drive configuration.
For more information about the backplane kits and cable kits, see the Lenovo Server Options site: https://serveroption.lenovo.com/cable_kit_options/

Tip: There is no upgrade path to add drive bays if the SR635 V3 already has a backplane, without removing the existing backplane. For example, you cannot upgrade a 4x 2.5-inch drive bay to 8 bays without first removing the existing backplane.
Table 19. Front drive bay field upgrades for servers without drive bays

Desired drive configuration (starting from zero bays)| Backplane and cable kits required
---|---
Front drive bays – 2.5-inch
8×2.5″ SAS/SATA| 1. 4XH7A83850, ThinkSystem V3 1U 8×2.5″ SAS/SATA Backplane Option Kit
2. 4X97A86317, ThinkSystem SR635 V3 8×2.5″ SAS/SATA Backplane Cable Kit
4×2.5″ NVMe Gen 5| 1. 4XH7A86277, ThinkSystem V3 1U 4×2.5″ NVMe Backplane Gen5 Option Kit
2. 4X97A86319, ThinkSystem SR635 V3 4×2.5″ AnyBay BP Gen5 NVMe Cable Ki
4×2.5″ NVMe Gen 4| 1. 4XH7A83852, ThinkSystem V3 1U 4×2.5″ NVMe Backplane Option Kit
2. 4X97A87796, ThinkSystem SR635 V3 4×2.5″ AnyBay Backplane Gen4 NVMe Cable Kit
4×2.5″ SAS/SATA| 1. 4XH7A83855, ThinkSystem V3 1U 4×2.5″ SAS/SATA Backplane Option Kit
2. 4X97A86318, ThinkSystem SR635 V3 4×2.5″ SAS/SATA Cable Kit
10×2.5″ (6x SAS/SATA 4x AnyBay Gen 4)| 1. 4XH7A86468, ThinkSystem V3 6×2.5″ SAS/SATA + 4 AnyBay Backplane Kit
2. 4X97A86138, ThinkSystem SR635 V3 8 SAS/SATA BP Cable Kit
10×2.5″ (6x SAS/SATA 2x AnyBay 2x NVMe Gen 4)| 1. 4XH7A86469, ThinkSystem V3 6 SATA/SAS +2 AnyBay + NVMe Backplane Kit
2. 4X97A86138, ThinkSystem SR635 V3 8 SAS/SATA BP Cable Kit
10×2.5″ SAS/SATA| 1. 4XH7A83858, ThinkSystem V3 1U 10×2.5″ SAS/SATA Backplane Option Kit
2. 4X97A86312, ThinkSystem SR635 V3 10SAS/SATA Cable Kit
10×2.5″ AnyBay Gen 4| 1. 4XH7A83859, ThinkSystem V3 1U 10×2.5″ AnyBay Backplane Option Kit
2. 4X97A86313, ThinkSystem SR635 V3 10×2.5″AnyBay NVMe Cable Kit
3. 4X97A86314, ThinkSystem SR635 V3 10×2.5″AnyBay Backplane SAS/SATA Cable Kit
10×2.5″ NVMe Gen 4| 1. 4XH7A87142, ThinkSystem V3 1U 10×2.5″ NVMe Backplane Gen4 Option Kit
2. 4X97A86313, ThinkSystem SR635 V3 10×2.5″AnyBay NVMe Cable Kit
10×2.5″ AnyBay Gen 5| 1. 4XH7A83851, ThinkSystem V3 1U 10×2.5″ AnyBay Backplane Gen5 Option Kit
2. 4X97A87794, ThinkSystem SR635 V3 10×2.5″ AnyBay Backplane Gen5 SAS/SATA Cable Kit
3. 4X97A87793, ThinkSystem SR635 V3 10×2.5″ AnyBay Backplane Gen5 NVMe Cable Kit
10×2.5″ NVMe Gen 5| 1. 4XH7A87139, ThinkSystem V3 1U 10×2.5″ NVMe Backplane Gen5 Option Kit
2. 4X97A87793, ThinkSystem SR635 V3 10×2.5″ AnyBay Backplane Gen5 NVMe Cable Kit
Front drive bays – EDSFF
16xEDSFF Gen 4| 1. 4XH7A87598, ThinkSystem SR645 V3/SR635 V3 EDSFF E1.S Gen4 5.9mm Backplane Kit
2. 4X97A87728, ThinkSystem SR635 V3 16EDSFF Backplane Gen4 NVMe Cable Kit
Rear drive bays – 2.5-inch
2×2.5″ SAS/SATA Rear| 1. 4XH7A87216, ThinkSystem SR635 V3 2×2.5″ SAS/SATA Gen4 Backplane Kit
2. 4X97A86320, ThinkSystem SR635 V3 2.5″ Chassis Rear Backplane SAS/SATA Cable Kit
2×2.5″ NVMe Gen 4 Rear| 1. 4XH7A87217, ThinkSystem SR635 V3 2×2.5″ NVMe Backplane Gen4 Option Kit
2. 4X97A86321, ThinkSystem SR635 V3 Rear 2.5″ NVMe Drive Kit

When adding drive bays, you will also need to add the appropriate storage controller(s). Consult the tables
in the Storage configurations section to determine what controller sections are supported and what additional controllers you will need. Controllers are described in the Controllers for internal storage section.
Upgrades to an Internal (CFF) HBA/RAID adapter
If you want to add an internal (CFF) storage adapter (HBA, RAID adapter or SAS expander) to a configuration, you will need to order the cable kit as listed in the following table. Suitable upgrades are either replacing an existing adapter in a rear PCIe slot, or adding the CFF adapter to a server without any storage adapter installed.
The cable kit to order is listed in the following table.
Table 20. Cable kit when upgrading to an Internal HBA/RAID adapter

7mm drive bay field upgrades
For field upgrades to add 7mm drive bays, order one of the part numbers listed in the following table.
Table 21. Field upgrades for 7mm drives

● 7mm drive cage
● 7mm drive backplane with cables for onboard connections
● 2x drive bay fillers| 7mm drive bays for SATA or NVMe drive support with no RAID support (does not include cables needed for RAID support with a separate adapter)
4XH7A87219| ThinkSystem SR635 V3 Rear 2x7mm SATA/NVMe RAID
● Enablement Kit
● 7mm drive cage
● 7mm drive backplane 2x drive bay fillers
Cables for connectivity to 540-8i or 9350-8i RAID adapter| 7mm drive bays for SATA or NVMe drives, plus cables for use with a RAID adapter. Requires a separate RAID adapter for RAID support.
4XH7A88532| ThinkSystem SR635 V3 7mm NVMe 2-Bay RAID Enablement Kit
● 7mm drive cage
● 7mm drive backplane with cables for onboard connections
● 2x drive bay fillers| 7mm drive bays for NVMe drive support. RAID support is integrated into the adapter using an onboard Marvell 88NR2241 NVMe RAID controller.
4XH7A93166| ThinkSystem SR635 V3/SR645 V3 7mm RAID B540p-2HS SATA/NVMe Enablement Kit
● 7mm drive cage
● 7mm drive backplane with cables for onboard connections
● 2x drive bay fillers| 7mm drive bays for SATA or NVMe drive support. RAID support is integrated into the adapter using an onboard Broadcom RAID controller.
RAID adapters for optional 7mm HW RAID support (for use with 4XH7A87219)|
4Y37A72482| ThinkSystem RAID 5350-8i PCIe 12Gb Adapter| RAID adapter needed for SATA RAID-1 with 2x 7mm SATA drives
4Y37A78834| ThinkSystem RAID 540-8i PCIe Gen4 12Gb Adapter| RAID adapter needed for NVMe RAID-1 with 2x 7mm NVMe drives
Tip : Once the 540-8i adapter is installed, it will need to be configured to operate in Tri- mode to enable NVMe RAID.

RAID flash power module (supercap) support
If you plan to add one of the RAID adapters that includes a RAID flash power module (supercap) as a field upgrade, then you will also need to order a supercap installation kit for the power module. For CTO orders, the components in the installation kit are automatically derived when you select the RAID adapter.
The adapters that this applies to are as follows:

• Any supported RAID 9350 adapter
• Any supported RAID 940 adapter (including 940 adapters with external ports)

There are three possible locations for supercaps. Details are summarized in the following table. Location references are shown in the figure below.
Table 22. Supercap support

Processor heatsinks| Number of adapters & supercaps| Locations of supercaps
---|---|---
High performance heatsink| 3*| 1.   Front of server behind operator panel (location ❶)
2.   Left side of server (location ❷)
3.   Installed in slot 3 attached to Riser 2 (location ?)
Closed-loop liquid heatsink| 2| 1.   Left side of server (location ❷)
2.   Installed in slot 3 attached to Riser 2 (location ?)

• The server supports 3 supercaps when an Internal (CFF) RAID adapter is installed; with standard PCIe RAID adapters, the server only supports 2 supercaps
  The locations where supercaps are installed is shown in the following figure. When adding a RAID adapter and supercap as a field upgrade, order the supercap installation kit list listedin the  following table.
  Table 23. RAID Flash Power Module installation kits

M.2 drives
The SR635 V3 supports one or two M.2 form-factor SATA or NVMe drives for use as an operating system boot solution or as additional storage.
The M.2 drives install into an M.2 module which is mounted horizontally in the server in front of the fans as shown in the Internal view of the server. In configurations with 2.5-inch front drive bays, the M.2 module is position between the drive bays and the fans.
The supported M.2 modules are listed in the following table. For field upgrades see the M.2 field upgrades section below.
Table 24. M.2 modules

Part number| Feature code| Description| SATA drives| NVMe drives| RAID| Maximum supported| Windows 10/11 support
---|---|---|---|---|---|---|---
4Y37A09738| B5XJ| ThinkSystem M.2 SATA/NVMe 2-Bay Enablement Kit| Yes| Yes (x1 lane)| No| 1| Supported
4Y37A79663| BM8X| ThinkSystem M.2 SATA/x4 NVMe 2-Bay Adapter| Yes| Yes (x4 lanes)| Optional| 1| Supported
4Y37A09750| B8P9| ThinkSystem M.2 NVMe 2-Bay RAID Adapter| No| Yes (x1 lane)| Integrated (Marvell)| 1| No
4Y37A90063| BYFF| ThinkSystem M.2 RAID B540i-2i SATA/NVMe Adapter| Yes| Yes (x1 lane)| Integrated (Broadcom)| 1| No

ThinkSystem M.2 SATA/x4 NVMe 2-Bay Adapter (4Y37A79663) optionally supports RAID with the addition of a separate RAID adapter is required. For CTO orders, ordering information is listed in the following table to derive the required RAID adapter.
Table 25. CTO feature codes to select M.2 RAID (ThinkSystem M.2 SATA/x4 NVMe 2-Bay Adapter only)

Feature code| Description| RAID support| Maximum supported
---|---|---|---
BT7N| ThinkSystem RAID 5350-8i for M.2/7mm SATA Boot Enablement| SATA| 1
BT7P| ThinkSystem RAID 540-8i for M.2/7mm NVMe Boot Enablement| NVMe| 1

Configuration notes:

• M.2 is not supported with all storage configurations – see Storage configurations for details.

• For ThinkSystem M.2 SATA/NVMe 2-Bay Enablement Kit (4Y37A09738):

  • RAID is not supported
  • The installation of at least one M.2 drive is required. In the configurator, at least one M.2 drive must be selected

• For ThinkSystem M.2 SATA/x4 NVMe 2-Bay Adapter (4Y37A79663):

  • The support of RAID-1 with the M.2 drives requires an additional RAID adapter that is installed in PCIe slot 1 or 2:
    ◼ RAID support for M.2 SATA drives requires a RAID 5350-8i adapter (feature BT7N)
    ◼ RAID support for M.2 NVMe drives requires a RAID 540-8i adapter operating in TriMode (feature BT7P)

  • The RAID adapter used for M.2 drive support cannot be configured for use with other drive bays (not even with 7mm)

  • M.2 RAID and 7mm RAID are mutually exclusive: they are not supported together in the same configuration

  • If RAID support is not required, the M.2 adapter connects to an onboard port. No additional adapter is required

  • The adapter is not supported with EDSFF drive bay configurations due to physical limitations

• For ThinkSystem M.2 NVMe 2-Bay RAID Adapter (4Y37A09750):

  • RAID is implemented using an onboard Marvell 88NR2241 NVMe RAID controller

• For ThinkSystem M.2 RAID B540i-2i SATA/NVMe Adapter (4Y37A90063):

  • RAID is implemented using an onboard Broadcom controller

The ThinkSystem M.2 SATA/NVMe 2-Bay Enablement Kit has the following features:

• Supports one or two M.2 drives, either SATA or NVMe
• When two drives installed, they must be either both SATA or both NVMe
• Support 42mm, 60mm, 80mm and 110mm drive form factors (2242, 2260, 2280 and 22110)
• On the SR635 V3, no RAID support
• No onboard RAID; RAID functionality is provided by a separate adapter (SATA or NVMe)
• Either 6Gbps SATA or PCIe 3.0 x1 interface to the drives depending on the drives installed
• Supports monitoring and reporting of events and temperature through I2C
• Firmware update via Lenovo firmware update tools
• When connected to a separate PCIe RAID adapter, supports SED drive encryption via the RAID adapter, otherwise no SED support

The ThinkSystem M.2 SATA/x4 NVMe 2-Bay Adapter has the following features:

• Supports one or two M.2 drives, either SATA or NVMe
• When two drives installed, they must be either both SATA or both NVMe
• Support 42mm, 60mm, 80mm and 110mm drive form factors (2242, 2260, 2280 and 22110)
• No onboard RAID; RAID functionality is provided by a separate adapter (SATA or NVMe)
• Either 6Gbps SATA or PCIe 4.0 x4 interface to the drives depending on the drives installed
• Supports monitoring and reporting of events and temperature through I2C
• Firmware update via Lenovo firmware update tools
• When connected to a separate PCIe RAID adapter, supports SED drive encryption via the RAID adapter, otherwise no SED support

The ThinkSystem M.2 NVMe 2-Bay RAID Adapter (4Y37A09750) has the following features:

• Supports one or two NVMe M.2 drives
• Support 42mm, 60mm, 80mm and 110mm drive form factors (2242, 2260, 2280 and 22110)
• RAID support via an onboard Marvell 88NR2241 NVMe RAID Controller
• With 1 drive, supports single-drive RAID-0
• With 2 drives, supports 2-drive RAID-0, 2-drive RAID-1, or two single-drive RAID-0 arrays
• PCIe 3.0 x2 host interface; PCIe 3.0 x1 connection to each drive
• Management and configuration support via UEFI and OS-based tools
• Supports monitoring and reporting of events and temperature through I2C
• Firmware update via Lenovo firmware update tools
• No support for SED drive encryption

The ThinkSystem M.2 RAID B540i-2i SATA/NVMe Adapter (4Y37A90063) has the following features:

• Supports one or two M.2 drives, either SATA or NVMe
• Support 42mm, 60mm, 80mm and 110mm drive form factors (2242, 2260, 2280 and 22110)
• RAID support via an onboard Broadcom SAS3808N RAID Controller
• With 1 drive, supports JBOD
• With 2 drives, supports 2-drive RAID-0, 2-drive RAID-1, or JBOD
• PCIe 4.0 x2 host interface; PCIe 4.0 x1 connection to each drive
• Management and configuration support via UEFI and OS-based tools
• Supports monitoring and reporting of events and temperature
• Firmware update via Lenovo firmware update tools
• Supports SED drive encryption

M.2 field upgrades
For field upgrades, the SR635 V3 also requires additional cables necessary to connect the M.2 to either the system board or RAID adapter.
Ordering information is listed in the following table.
Table 26. Field upgrades for M.2 drive support

M.2 Cable Kits
4X97A87900| ThinkSystem SR635 V3 M.2 SATA/NVMe Cable Kit
For use with ThinkSystem M.2 SATA/NVMe 2-Bay Enablement Kit (4Y37A09738) or ThinkSystem
M.2 NVMe 2-Bay RAID Adapter (4Y37A09750)
4X97A87901| ThinkSystem SR635 V3 M.2 x4 SATA/NVMe Cable Kit
For use with ThinkSystem M.2 SATA/x4 NVMe 2-Bay Adapter (4Y37A79663), with or without a RAID adapter
4X97A94121| ThinkSystem SR635 V3 M.2 RAID B540i-2i SATA/NVMe Cable Kit
For use with ThinkSystem M.2 RAID B540i-2i SATA/NVMe Adapter (4Y37A90063)
RAID adapters for M.2 RAID support (for 4Y37A79663 only)
4Y37A72482| ThinkSystem RAID 5350-8i PCIe 12Gb Adapter (SATA M.2 support)
4Y37A78834| ThinkSystem RAID 540-8i PCIe Gen4 12Gb Adapter (NVMe M.2 support using Tri-Mode)
Tip : Once the 540-8i adapter is installed, it will need to be configured to operate in Tri-mode to enable NVMe RAID.

SED encryption key management with SKLM
The server supports self-encrypting drives (SEDs) as listed in the Internal drive options section. To effectively manage a large deployment of these drives in Lenovo servers, IBM Security Key Lifecycle Manager (SKLM) offers a centralized key management solution. A Lenovo Feature on Demand (FoD) upgrade is used to enable this SKLM support in the management processor of the server.
The following table lists the part numbers and feature codes for the upgrades.
Table 27. FoD upgrades for SKLM support

Security Key Lifecycle Manager – FoD (United States, Canada, Asia Pacific, and Japan)
00D9998| A5U1| SKLM for System x/ThinkSystem w/SEDs – FoD per Install with 1 year S&S
00D9999| AS6C| SKLM for System x/ThinkSystem w/SEDs – FoD per Install with 3 year S&S
Security Key Lifecycle Manager – FoD (Latin America, Europe, Middle East, and Africa)
00FP648| A5U1| SKLM for System x/ThinkSystem w/SEDs – FoD per Install with 1 year S&S
00FP649| AS6C| SKLM for System x/ThinkSystem w/SEDs – FoD per Install with 3 year S&S

The IBM Security Key Lifecycle Manager software is available from Lenovo using the ordering information listed in the following table.
Table 28. IBM Security Key Lifecycle Manager licenses

SW Subscription & Support 12
Months
7S0A007HWW| IBM Security Key Lifecycle Manager For Raw Decimal Terabyte Storage Resource Value Unit
License + SW Subscription & Support 12 Months
7S0A007KWW| IBM Security Key Lifecycle Manager For Raw Decimal Petabyte Storage Resource Value Unit
License + SW Subscription & Support 12 Months
7S0A007MWW| IBM Security Key Lifecycle Manager For Usable Decimal Terabyte Storage Resource Value Unit
License + SW Subscription & Support 12 Months
7S0A007PWW| IBM Security Key Lifecycle Manager For Usable Decimal Petabyte Storage Resource Value Unit
License + SW Subscription & Support 12 Months

Controllers for internal storage

The SR635 V3 offers a variety of connectivity options for internal drives:

• For 2.5-inch drives:
  • Onboard SATA ports (feature AVUX)
  • Onboard NVMe ports (feature BC4V)
  • RAID adapters and HBAs for SAS/SATA drives (PCIe slot-based)
  • RAID adapters and HBAs for SAS/SATA drives (cabled in a dedicated space)
• For 7mm drive bays in the rear of the server (see the 7mm drives section)
  • SATA controller integrated into the 7mm drive bay enclosure
  • NVMe controller integrated into the 7mm drive bay enclosure
• For M.2 drives internal to the server (see M.2 drives section)
  • SATA controller integrated on the M.2 adapters
  • NVMe controller integrated on the M.2 adapters

As well as supporting RAID adapters and HBAs that install in a PCIe slot, the SR635 V3 with 2.5-inch front drive bays supports a custom form factor (CFF) adapter that is mounted in the server and cabled to one of the onboard NVMe ports.
The following table lists the adapters used for the internal storage of the server.
Table 29. Internal Storage adapter support

Part number| Feature code| Description| Power module (supercap)| Max qty| Slots supported| Windows 10/11 support
---|---|---|---|---|---|---
Onboard controllers
CTO only| AVUX| Onboard SATA AHCI Mode| No| 1| N/A| Supported
CTO only| BC4V| Non RAID NVMe (Onboard NVMe)| No| 1| N/A| Supported
SAS/SATA RAID – PCIe 3.0 adapters
4Y37A72482| BJHK| ThinkSystem RAID 5350-8i PCIe 12Gb Adapter| No| 1| 1| Supported
4Y37A72483| BJHL| ThinkSystem RAID 9350-8i 2GB Flash PCIe 12Gb Adapter| Included| 1| 1| Supported
4Y37A72484| BJHM| ThinkSystem RAID 9350-8i 2GB Flash PCIe 12Gb Internal Adapter| Included| 1| None (cabled)| Supported
4Y37A72485| BJHN| ThinkSystem RAID 9350-16i 4GB Flash PCIe 12Gb Adapter| Included| 1| 1| Supported
---|---|---|---|---|---|---
4Y37A72486| BJHP| ThinkSystem RAID 9350-16i 4GB Flash PCIe 12Gb Internal Adapter| Included| 1| None (cabled)| Supported
SAS/SATA RAID – PCIe 4.0 adapters
4Y37A78834| BMFT| ThinkSystem RAID 540-8i PCIe Gen4 12Gb Adapter| No| 1| 1| Supported
4Y37A78835| BNAX| ThinkSystem RAID 540-16i PCIe Gen4 12Gb Adapter| No| 1| 1| Supported
4Y37A09728†| B8NY| ThinkSystem RAID 940-8i 4GB Flash PCIe Gen4 12Gb Adapter| Included| 1| 1| Supported
4Y37A78600†| BM35| ThinkSystem RAID 940-16i 4GB Flash PCIe Gen4 12Gb Adapter| Included| 1| 1| Supported
4Y37A09730†| B8NZ| ThinkSystem RAID 940-16i 8GB Flash PCIe Gen4 12Gb Adapter| Included| 1| 1| Supported
4Y37A09735| B8P0| ThinkSystem RAID 940-16i 8GB Flash PCIe Gen4 12Gb Internal Adapter| Included| 1| None (cabled)| Supported
SAS/SATA HBA – PCIe 3.0 adapters
4Y37A72480| BJHH| ThinkSystem 4350-8i SAS/SATA 12Gb HBA| No| 1| 1| No
4Y37A72481| BJHJ| ThinkSystem 4350-16i SAS/SATA 12Gb HBA| No| 1| 1| No
SAS/SATA HBA – PCIe 4.0 adapters
4Y37A78601| BM51| ThinkSystem 440-8i SAS/SATA PCIe Gen4 12Gb HBA| No| 1| 1| No
4Y37A78602| BM50| ThinkSystem 440-16i SAS/SATA PCIe Gen4 12Gb HBA| No| 1| 1| No
4Y37A09725| B8P1| ThinkSystem 440-16i SAS/SATA PCIe Gen4 12Gb Internal HBA| No| 1| None (cabled)| No
NVMe
4Y37A78600†| BM36| ThinkSystem RAID 940-16i 4GB Flash PCIe Gen4 12Gb Adapter for U.3| Included| 1| 1| Supported
4Y37A09730†| BDY4| ThinkSystem RAID 940-16i 8GB Flash PCIe Gen4 12Gb Adapter for U.3| Included| 1| 1| Supported
4Y37A09728†| BGM1| ThinkSystem RAID 940-8i 4GB Flash PCIe Gen4 12Gb Adapter for U.3| Included| 1| 1| Supported

† Adapter also supports PCIe 4.0 x1 connectivity to NVMe drives (requires NVMe drives with U.3 interface)
Configuration notes:

• Supercap support limits the number of RAID adapters installable : The table lists whether the adapter includes a power module (supercap) to power the flash memory. The server supports 2 supercaps as described in the RAID flash power module (supercap) support section. The number of supercaps supported also determines the maximum number of RAID adapters with flash that can be installed in the server.
• Field upgrades: If you are adding a RAID adapter with supercap to the server as a field upgrade, you may need a supercap holder as described in the RAID flash power module (supercap) support section.
• 7mm drive support: The storage adapters listed in the table below do not provide connectivity to the 7mm drive bays that are optionally available at the rear of the server. The 7mm drives have their own independent RAID controller. See the Rear 2.5-inch and 7mm drive bays section for details.
• E810 Ethernet and X350 RAID/HBAs: The use of both an Intel E810 network adapter and an X350 HBA/RAID adapter (9350, 5350 and 4350) is currently not supported in ThinkSystem servers. For details see Support Tip HT513226. Planned support for this combination of adapters is 3Q/2024.

The RAID 940-8i and RAID 940-16i adapters also support NVMe through a feature named Tri-Mode support (or Trimode support). This feature enables the use of NVMe U.3 drives at the same time as SAS and SATA drives. Tri-Mode requires an AnyBay backplane. Cabling of the controller to the backplanes is the same as with SAS/SATA drives, and the NVMe drives are connected via a PCIe x1 link to the controller.
NVMe drives connected using Tri-Mode support provide better performance than SAS or SATA drives: A SATA SSD has a data rate of 6Gbps, a SAS SSD has a data rate of 12Gbps, whereas an NVMe U.3 Gen 4 SSD with a PCIe x1 link will have a data rate of 16Gbps. NVMe drives typically also have lower latency and higher IOPS compared to SAS and SATA drives. Tri-Mode is supported with U.3 NVMe drives in either 2.5inch and 3.5-inch form factor and requires an AnyBay backplane.
Tri-Mode requires U.3 drives: Only NVMe drives with a U.3 interface are supported. U.2 drives are not supported. See the Internal drive options section for the U.3 drives supported by the server.

The onboard SATA controller has the following features:

• Controller integrated into the AMD processor
• JBOD only; no RAID support
• Supports up to 12 SATA drives in the SR635 V3
• Supports HDDs and SSDs; can be mixed

The onboard NVMe support has the following features:

• Controller integrated into the AMD processor
• Supports up to 16 NVMe drives direct connected to onboard ports
• Each drive has PCIe x4 host interface, up to PCIe Gen5 depending on the backplane and drive type
• Supports JBOD only – No RAID support

For specifications about the RAID adapters and HBAs supported by the SR635 V3, see the ThinkSystem RAID Adapter and HBA Reference, available from:
https://lenovopress.lenovo.com/lp1288-thinksystem-raid-adapter-and-hba- reference#sr635-v3support=SR635%2520V3

For more information about each of the adapters, see the product guides in the RAID adapters or HBA sections of the Lenovo Press web site:
https://lenovopress.com/servers/options/raid
https://lenovopress.com/servers/options/hba

Internal drive options

The following tables list the drive options for internal storage of the server.

2.5-inch hot-swap drives:

• 2.5-inch hot-swap 12 Gb SAS HDDs
• 2.5-inch hot-swap 24 Gb SAS SSDs
• 2.5-inch hot-swap 12 Gb SAS SSDs
• 2.5-inch hot-swap 6 Gb SATA SSDs
• 2.5-inch hot-swap PCIe 5.0 NVMe SSDs
• 2.5-inch hot-swap PCIe 4.0 NVMe SSDs

2.5-inch 7mm hot-swap drives:

• 7mm 2.5-inch hot-swap 6 Gb SATA SSDs
• 7mm 2.5-inch hot-swap PCIe 4.0 NVMe SSDs

EDSFF hot-swap drives:

• E1.S EDSFF hot-swap PCIe 4.0 NVMe SSDs

M.2 drives:

• M.2 SATA drives
• M.2 PCIe 4.0 NVMe drives

M.2 drive support: The use of M.2 drives requires an additional adapter as described in the M.2 drives subsection.
SED support: The tables include a column to indicate which drives support SED encryption. The encryption functionality can be disabled if needed. Note: Not all SED-enabled drives have “SED” in the description.
Table 30. 2.5-inch hot-swap 12 Gb SAS HDDs

Part number| Feature code| Description| SED support| Max Qty
---|---|---|---|---
2.5-inch hot-swap HDDs – 12 Gb SAS 15K
7XB7A00021| AULV| ThinkSystem 2.5″ 300GB 15K SAS 12Gb Hot Swap 512n HDD| No| 12
7XB7A00022| AULW| ThinkSystem 2.5″ 600GB 15K SAS 12Gb Hot Swap 512n HDD| No| 12
7XB7A00023| AULX| ThinkSystem 2.5″ 900GB 15K SAS 12Gb Hot Swap 512e HDD| No| 12
2.5-inch hot-swap HDDs – 12 Gb SAS 10K
7XB7A00025| AULZ| ThinkSystem 2.5″ 600GB 10K SAS 12Gb Hot Swap 512n HDD| No| 12
7XB7A00027| AUM1| ThinkSystem 2.5″ 1.2TB 10K SAS 12Gb Hot Swap 512n HDD| No| 12
7XB7A00028| AUM2| ThinkSystem 2.5″ 1.8TB 10K SAS 12Gb Hot Swap 512e HDD| No| 12
4XB7A83970| BRG7| ThinkSystem 2.5″ 2.4TB 10K SAS 12Gb Hot Swap 512e HDD v2| No| 12
2.5-inch hot-swap SED HDDs – 12 Gb SAS 10K
7XB7A00031| AUM5| ThinkSystem 2.5″ 600GB 10K SAS 12Gb Hot Swap 512n HDD SED| Support| 12
7XB7A00033| B0YX| ThinkSystem 2.5″ 1.2TB 10K SAS 12Gb Hot Swap 512n HDD SED| Support| 12
4XB7A84038| BRG8| ThinkSystem 2.5″ 2.4TB 10K SAS 12Gb Hot Swap 512e HDD FIPS v2| Support| 12

Table 31. 2.5-inch hot-swap 24 Gb SAS SSDs

Part number| Feature code| Description| SED support| Max Qty
---|---|---|---|---
2.5-inch hot-swap SSDs – 24 Gb SAS – Mixed Use/Mainstream (3-5 DWPD)
4XB7A80340| BNW8| ThinkSystem 2.5″ PM1655 800GB Mixed Use SAS 24Gb HS SSD| Support| 12
4XB7A80341| BNW9| ThinkSystem 2.5″ PM1655 1.6TB Mixed Use SAS 24Gb HS SSD| Support| 12
4XB7A80342| BNW6| ThinkSystem 2.5″ PM1655 3.2TB Mixed Use SAS 24Gb HS SSD| Support| 12
4XB7A80343| BP3K| ThinkSystem 2.5″ PM1655 6.4TB Mixed Use SAS 24Gb HS SSD| Support| 12
2.5-inch hot-swap SSDs – 24 Gb SAS – Read Intensive/Entry/Capacity ( <3 DWPD)
4XB7A80318| BNWC| ThinkSystem 2.5″ PM1653 960GB Read Intensive SAS 24Gb HS SSD| Support| 12
4XB7A80319| BNWE| ThinkSystem 2.5″ PM1653 1.92TB Read Intensive SAS 24Gb HS SSD| Support| 12
4XB7A80320| BNWF| ThinkSystem 2.5″ PM1653 3.84TB Read Intensive SAS 24Gb HS SSD| Support| 12
4XB7A80321| BP3E| ThinkSystem 2.5″ PM1653 7.68TB Read Intensive SAS 24Gb HS SSD| Support| 12
4XB7A80322| BP3J| ThinkSystem 2.5″ PM1653 15.36TB Read Intensive SAS 24Gb HS SSD| Support| 12
4XB7A80323| BP3D| ThinkSystem 2.5″ PM1653 30.72TB Read Intensive SAS 24Gb HS SSD| Support| 12

Table 32. 2.5-inch hot-swap 12 Gb SAS SSDs

Part number| Feature code| Description| SED support| Max Qty
---|---|---|---|---
2.5-inch hot-swap SSDs – 12 Gb SAS – Write Intensive/Performance (10+ DWPD)
4XB7A83214| BR10| ThinkSystem 2.5″ Nytro 3750 400GB Write Intensive SAS 12Gb HS SSD| Support| 12
4XB7A83215| BR0Z| ThinkSystem 2.5″ Nytro 3750 800GB Write Intensive SAS 12Gb HS SSD| Support| 12
4XB7A83216| BR0Y| ThinkSystem 2.5″ Nytro 3750 1.6TB Write Intensive SAS 12Gb HS SSD| Support| 12
4XB7A83217| BR0X| ThinkSystem 2.5″ Nytro 3750 3.2TB Write Intensive SAS 12Gb HS SSD| Support| 12

Table 33. 2.5-inch hot-swap 6 Gb SATA SSDs

Part number| Feature code| Description| SED support| Max Qty
---|---|---|---|---
2.5-inch hot-swap SSDs – 6 Gb SATA – Mixed Use/Mainstream (3-5 DWPD)
4XB7A90884| BYM2| ThinkSystem 2.5″ Multi Vendor 480GB Mixed Use SATA 6Gb HS SSD v2| No| 12
4XB7A90885| BYM4| ThinkSystem 2.5″ Multi Vendor 960GB Mixed Use SATA 6Gb HS SSD v2| No| 12
4XB7A90886| BYM5| ThinkSystem 2.5″ Multi Vendor 1.92TB Mixed Use SATA 6Gb HS SSD v2| No| 12
4XB7A90887| BYM6| ThinkSystem 2.5″ Multi Vendor 3.84TB Mixed Use SATA 6Gb HS SSD v2| No| 12
4XB7A82289| BQ21| ThinkSystem 2.5″ 5400 MAX 480GB Mixed Use SATA 6Gb HS SSD| Support| 12
4XB7A82290| BQ24| ThinkSystem 2.5″ 5400 MAX 960GB Mixed Use SATA 6Gb HS SSD| Support| 12
4XB7A82291| BQ22| ThinkSystem 2.5″ 5400 MAX 1.92TB Mixed Use SATA 6Gb HS SSD| Support| 12
4XB7A82292| BQ23| ThinkSystem 2.5″ 5400 MAX 3.84TB Mixed Use SATA 6Gb HS SSD| Support| 12
4XB7A17125| BA7Q| ThinkSystem 2.5″ S4620 480GB Mixed Use SATA 6Gb HS SSD| No| 12
---|---|---|---|---
4XB7A17126| BA4T| ThinkSystem 2.5″ S4620 960GB Mixed Use SATA 6Gb HS SSD| No| 12
4XB7A17127| BA4U| ThinkSystem 2.5″ S4620 1.92TB Mixed Use SATA 6Gb HS SSD| No| 12
4XB7A17128| BK7L| ThinkSystem 2.5″ S4620 3.84TB Mixed Use SATA 6Gb HS SSD| No| 12
2.5-inch hot-swap SSDs – 6 Gb SATA – Read Intensive/Entry ( <3 DWPD)
4XB7A90872| BYLQ| ThinkSystem 2.5″ Multi Vendor 240GB Read Intensive SATA 6Gb HS SSD v2| No| 12
4XB7A90873| BYLR| ThinkSystem 2.5″ Multi Vendor 480GB Read Intensive SATA 6Gb HS SSD v2| No| 12
4XB7A90874| BYLS| ThinkSystem 2.5″ Multi Vendor 960GB Read Intensive SATA 6Gb HS SSD v2| No| 12
4XB7A90875| BYLT| ThinkSystem 2.5″ Multi Vendor 1.92TB Read Intensive SATA 6Gb HS SSD v2| No| 12
4XB7A90876| BYLU| ThinkSystem 2.5″ Multi Vendor 3.84TB Read Intensive SATA 6Gb HS SSD v2| No| 12
4XB7A90877| BYLV| ThinkSystem 2.5″ Multi Vendor 7.68TB Read Intensive SATA 6Gb HS SSD v2| No| 12
4XB7A87524| BWKN| ThinkSystem 2.5″ PM893a 480GB Read Intensive SATA 6Gb HS SSD| Support| 12
4XB7A87525| BWKM| ThinkSystem 2.5″ PM893a 960GB Read Intensive SATA 6Gb HS SSD| Support| 12
4XB7A87526| BWKL| ThinkSystem 2.5″ PM893a 1.92TB Read Intensive SATA 6Gb HS SSD| Support| 12
4XB7A87527| BWKK| ThinkSystem 2.5″ PM893a 3.84TB Read Intensive SATA 6Gb HS SSD| Support| 12
4XB7A87528| BYLK| ThinkSystem 2.5″ PM893a 7.68TB Read Intensive SATA 6Gb HS SSD| Support| 12
4XB7A82258| BQ1Q| ThinkSystem 2.5″ 5400 PRO 240GB Read Intensive SATA 6Gb HS SSD| Support| 12
4XB7A82259| BQ1P| ThinkSystem 2.5″ 5400 PRO 480GB Read Intensive SATA 6Gb HS SSD| Support| 12
4XB7A82260| BQ1R| ThinkSystem 2.5″ 5400 PRO 960GB Read Intensive SATA 6Gb HS SSD| Support| 12
4XB7A82261| BQ1X| ThinkSystem 2.5″ 5400 PRO 1.92TB Read Intensive SATA 6Gb HS SSD| Support| 12
4XB7A82262| BQ1S| ThinkSystem 2.5″ 5400 PRO 3.84TB Read Intensive SATA 6Gb HS SSD| Support| 12
4XB7A82263| BQ1T| ThinkSystem 2.5″ 5400 PRO 7.68TB Read Intensive SATA 6Gb HS SSD| Support| 12
4XB7A17072| B99D| ThinkSystem 2.5″ S4520 240GB Read Intensive SATA 6Gb HS SSD| No| 12
4XB7A17101| BA7G| ThinkSystem 2.5″ S4520 480GB Read Intensive SATA 6Gb HS SSD| No| 12
4XB7A17102| BA7H| ThinkSystem 2.5″ S4520 960GB Read Intensive SATA 6Gb HS SSD| No| 12
4XB7A17103| BA7J| ThinkSystem 2.5″ S4520 1.92TB Read Intensive SATA 6Gb HS SSD| No| 12
4XB7A17104| BK77| ThinkSystem 2.5″ S4520 3.84TB Read Intensive SATA 6Gb HS SSD| No| 12
4XB7A17105| BK78| ThinkSystem 2.5″ S4520 7.68TB Read Intensive SATA 6Gb HS SSD| No| 12

Table 34. 2.5-inch hot-swap PCIe 5.0 NVMe SSDs

Part number| Feature code| Description| SED support| Max Qty
---|---|---|---|---
2.5-inch SSDs – U.2 PCIe 5.0 NVMe – Mixed Use/Mainstream (3-5 DWPD)
4XB7A93888| C0ZM| ThinkSystem 2.5″ U.2 CD8P 1.6TB Mixed Use NVMe PCIe 5.0 x4 HS SSD| Support| 12
4XB7A93889| C0ZL| ThinkSystem 2.5″ U.2 CD8P 3.2TB Mixed Use NVMe PCIe 5.0 x4 HS SSD| Support| 12
4XB7A93890| C0ZK| ThinkSystem 2.5″ U.2 CD8P 6.4TB Mixed Use NVMe PCIe 5.0 x4 HS SSD| Support| 12
4XB7A93891| C0ZJ| ThinkSystem 2.5″ U.2 CD8P 12.8TB Mixed Use NVMe PCIe 5.0 x4 HS SSD| Support| 12
4XB7A93127| C0ZR| ThinkSystem 2.5″ U.2 Multi Vendor 1.6TB Mixed Use NVMe PCIe 5.0 x4 HS SSD| Support| 12
4XB7A93128| C0ZQ| ThinkSystem 2.5″ U.2 Multi Vendor 3.2TB Mixed Use NVMe PCIe 5.0 x4 HS SSD| Support| 12
4XB7A93129| C0ZP| ThinkSystem 2.5″ U.2 Multi Vendor 6.4TB Mixed Use NVMe PCIe 5.0 x4 HS SSD| Support| 12
4XB7A93130| C0ZN| ThinkSystem 2.5″ U.2 Multi Vendor 12.8TB Mixed Use NVMe PCIe 5.0 x4 HS SSD| Support| 12
2.5-inch SSDs – U.2 PCIe 5.0 NVMe – Read Intensive/Entry ( <3 DWPD)
4XB7A93480| C0BB| ThinkSystem 2.5″ U.2 CD8P 1.92TB Read Intensive NVMe PCIe 5.0 x4 HS SSD| Support| 12
4XB7A93481| C0BA| ThinkSystem 2.5″ U.2 CD8P 3.84TB Read Intensive NVMe PCIe 5.0 x4 HS SSD| Support| 12
4XB7A93482| C0B9| ThinkSystem 2.5″ U.2 CD8P 7.68TB Read Intensive NVMe PCIe 5.0 x4 HS SSD| Support| 12
4XB7A93483| C0B8| ThinkSystem 2.5″ U.2 CD8P 15.36TB Read Intensive NVMe PCIe 5.0 x4 HS SSD| Support| 12
4XB7A93484| C0B7| ThinkSystem 2.5″ U.2 CD8P 30.72TB Read Intensive NVMe PCIe 5.0 x4 HS SSD| Support| 12
4XB7A93122| C0ZV| ThinkSystem 2.5″ U.2 Multi Vendor 1.92TB Read Intensive NVMe PCIe 5.0 x4 HS SSD| Support| 12
4XB7A93123| C0ZU| ThinkSystem 2.5″ U.2 Multi Vendor 3.84TB Read Intensive NVMe PCIe 5.0 x4 HS SSD| Support| 12
4XB7A93124| C0ZT| ThinkSystem 2.5″ U.2 Multi Vendor 7.68TB Read Intensive NVMe PCIe 5.0 x4 HS SSD| Support| 12
4XB7A93125| C0ZS| ThinkSystem 2.5″ U.2 Multi Vendor 15.36TB Read Intensive NVMe PCIe 5.0 x4 HS SSD| Support| 12
2.5-inch SSDs – U.3 PCIe 5.0 NVMe – Read Intensive/Entry ( <3 DWPD)
4XB7A82366| BTPZ| ThinkSystem 2.5″ U.3 PM1743 1.92TB Read Intensive NVMe PCIe 5.0 x4 HS SSD| Support| 12
4XB7A82367| BTQ0| ThinkSystem 2.5″ U.3 PM1743 3.84TB Read Intensive NVMe PCIe 5.0 x4 HS SSD| Support| 12
4XB7A82368| BTQ1| ThinkSystem 2.5″ U.3 PM1743 7.68TB Read Intensive NVMe PCIe 5.0 x4 HS SSD| Support| 12
4XB7A82369| BTQ2| ThinkSystem 2.5″ U.3 PM1743 15.36TB Read Intensive NVMe PCIe 5.0 x4 HS SSD| Support| 12
---|---|---|---|---

Table 35. 2.5-inch hot-swap PCIe 4.0 NVMe SSDs

Part number| Feature code| Description| SED support| Max Qty
---|---|---|---|---
2.5-inch SSDs – U.2 PCIe 4.0 NVMe – Write Intensive/Performance (10+ DWPD)
4XB7A17158| BKKY| ThinkSystem 2.5″ U.2 P5800X 400GB Write Intensive NVMe PCIe 4.0 x4 HS SSD| No| 12
4XB7A17159| BKKZ| ThinkSystem 2.5″ U.2 P5800X 800GB Write Intensive NVMe PCIe 4.0 x4 HS SSD| No| 12
4XB7A17160| BMM8| ThinkSystem 2.5″ U.2 P5800X 1.6TB Write Intensive NVMe PCIe 4.0 x4 HS SSD| No| 12
2.5-inch SSDs – U.2 PCIe 4.0 NVMe – Mixed Use/Mainstream (3-5 DWPD)
4XB7A93896| C18J| ThinkSystem 2.5″ U.2 Multi Vendor 1.6TB Mixed Use NVMe PCIe 4.0 x4 HS SSD| Support| 12
4XB7A93897| C18H| ThinkSystem 2.5″ U.2 Multi Vendor 3.2TB Mixed Use NVMe PCIe 4.0 x4 HS SSD| Support| 12
4XB7A93898| C18G| ThinkSystem 2.5″ U.2 Multi Vendor 6.4TB Mixed Use NVMe PCIe 4.0 x4 HS SSD| Support| 12
4XB7A93899| C18F| ThinkSystem 2.5″ U.2 Multi Vendor 12.8TB Mixed Use NVMe PCIe 4.0 x4 HS SSD| Support| 12
4XB7A17129| BNEG| ThinkSystem 2.5″ U.2 P5620 1.6TB Mixed Use NVMe PCIe 4.0 x4 HS SSD| Support| 12
4XB7A17130| BNEH| ThinkSystem 2.5″ U.2 P5620 3.2TB Mixed Use NVMe PCIe 4.0 x4 HS SSD| Support| 12
4XB7A17133| BNEZ| ThinkSystem 2.5″ U.2 P5620 6.4TB Mixed Use NVMe PCIe 4.0 x4 HS SSD| Support| 12
4XB7A17136| BA4V| ThinkSystem 2.5″ U.2 P5620 12.8TB Mixed Use NVMe PCIe 4.0 x4 HS SSD| Support| 12
2.5-inch SSDs – U.3 PCIe 4.0 NVMe – Mixed Use/Mainstream (3-5 DWPD)
4XB7A95054| C2BG| ThinkSystem 2.5″ U.3 7500 MAX 800GB Mixed Use NVMe PCIe 4.0 x4 HS SSD| Support| 12
4XB7A95055| C2BV| ThinkSystem 2.5″ U.3 7500 MAX 1.6TB Mixed Use NVMe PCIe 4.0 x4 HS SSD| Support| 12
4XB7A95056| C2BW| ThinkSystem 2.5″ U.3 7500 MAX 3.2TB Mixed Use NVMe PCIe 4.0 x4 HS SSD| Support| 12
4XB7A95057| C2BF| ThinkSystem 2.5″ U.3 7500 MAX 6.4TB Mixed Use NVMe PCIe 4.0 x4 HS SSD| Support| 12
4XB7A95058| C2BX| ThinkSystem 2.5″ U.3 7500 MAX 12.8TB Mixed Use NVMe PCIe 4.0 x4 HS SSD| Support| 12
4XB7A79639| BNF1| ThinkSystem 2.5″ U.3 7450 MAX 800GB Mixed Use NVMe PCIe 4.0 x4 HS SSD| Support| 12
4XB7A13967| BNEJ| ThinkSystem 2.5″ U.3 7450 MAX 1.6TB Mixed Use NVMe PCIe 4.0 x4 HS SSD| Support| 12
4XB7A13970| BNEY| ThinkSystem 2.5″ U.3 7450 MAX 3.2TB Mixed Use NVMe PCIe 4.0 x4 HS SSD| Support| 12
---|---|---|---|---
4XB7A13971| BNEL| ThinkSystem 2.5″ U.3 7450 MAX 6.4TB Mixed Use NVMe PCIe 4.0 x4 HS SSD| Support| 12
4XB7A84056| BRG0| ThinkSystem 2.5″ U.3 7450 MAX 12.8TB Mixed Use NVMe PCIe 4.0 x4 HS SSD| Support| 12
2.5-inch SSDs – U.2 PCIe 4.0 NVMe – Read Intensive/Entry ( <3 DWPD)
4XB7A95047| C2BL| ThinkSystem 2.5″ U.2 P5336 7.68TB Read Intensive NVMe PCIe 4.0 x4 HS SSD| Support| 12
4XB7A95048| C2BK| ThinkSystem 2.5″ U.2 P5336 15.36TB Read Intensive NVMe PCIe 4.0 x4 HS SSD| Support| 12
4XB7A93075| C1WJ| ThinkSystem 2.5″ U.2 P5336 30.72TB Read Intensive NVMe PCIe 4.0 x4 HS SSD| Support| 12
4XB7A93076| C1WK| ThinkSystem 2.5″ U.2 P5336 61.44TB Read Intensive NVMe PCIe 4.0 x4 HS SSD| Support| 12
4XB7A93892| C18N| ThinkSystem 2.5″ U.2 Multi Vendor 1.92TB Read Intensive NVMe PCIe 4.0 x4 HS SSD| Support| 12
4XB7A93893| C18M| ThinkSystem 2.5″ U.2 Multi Vendor 3.84TB Read Intensive NVMe PCIe 4.0 x4 HS SSD| Support| 12
4XB7A93894| C18L| ThinkSystem 2.5″ U.2 Multi Vendor 7.68TB Read Intensive NVMe PCIe 4.0 x4 HS SSD| Support| 12
4XB7A93895| C18K| ThinkSystem 2.5″ U.2 Multi Vendor 15.36TB Read Intensive NVMe PCIe 4.0 x4 HS SSD| Support| 12
4XB7A90099| BXMB| ThinkSystem 2.5″ U.2 PM9A3 960GB Read Intensive NVMe PCIe 4.0 x4 HS SSD| Support| 12
4XB7A90100| BXMA| ThinkSystem 2.5″ U.2 PM9A3 1.92TB Read Intensive NVMe PCIe 4.0 x4 HS SSD| Support| 12
4XB7A90101| BXM9| ThinkSystem 2.5″ U.2 PM9A3 3.84TB Read Intensive NVMe PCIe 4.0 x4 HS SSD| Support| 12
4XB7A13941| BMGD| ThinkSystem 2.5″ U.2 P5520 1.92TB Read Intensive NVMe PCIe 4.0 x4 HS SSD| Support| 12
4XB7A13942| BMGE| ThinkSystem 2.5″ U.2 P5520 3.84TB Read Intensive NVMe PCIe 4.0 x4 HS SSD| Support| 12
4XB7A13943| BNEF| ThinkSystem 2.5″ U.2 P5520 7.68TB Read Intensive NVMe PCIe 4.0 x4 HS SSD| Support| 12
4XB7A13631| BNEQ| ThinkSystem 2.5″ U.2 P5520 15.36TB Read Intensive NVMe PCIe 4.0 x4 HS SSD| Support| 12
2.5-inch SSDs – U.3 PCIe 4.0 NVMe – Read Intensive/Entry ( <3 DWPD)
4XB7A95049| C2BY| ThinkSystem 2.5″ U.3 7500 PRO 960GB Read Intensive NVMe PCIe 4.0 x4 HS SSD| Support| 12
4XB7A95050| C2BR| ThinkSystem 2.5″ U.3 7500 PRO 1.92TB Read Intensive NVMe PCIe 4.0 x4 HS SSD| Support| 12
4XB7A95051| C2BS| ThinkSystem 2.5″ U.3 7500 PRO 3.84TB Read Intensive NVMe PCIe 4.0 x4 HS SSD| Support| 12
4XB7A95052| C2BT| ThinkSystem 2.5″ U.3 7500 PRO 7.68TB Read Intensive NVMe PCIe 4.0 x4 HS SSD| Support| 12
4XB7A95053| C2BU| ThinkSystem 2.5″ U.3 7500 PRO 15.36TB Read Intensive NVMe PCIe 4.0 x4 HS SSD| Support| 12
---|---|---|---|---
4XB7A91176| BZC1| ThinkSystem 2.5″ U.3 6500 ION 30.72TB Read Intensive NVMe PCIe 4.0 x4 HS SSD| Support| 12
4XB7A79646| BNF3| ThinkSystem 2.5″ U.3 7450 PRO 960GB Read Intensive NVMe PCIe 4.0 x4 HS SSD| Support| 12
4XB7A79647| BNF2| ThinkSystem 2.5″ U.3 7450 PRO 1.92TB Read Intensive NVMe PCIe 4.0 x4 HS SSD| Support| 12
4XB7A79648| BNF5| ThinkSystem 2.5″ U.3 7450 PRO 3.84TB Read Intensive NVMe PCIe 4.0 x4 HS SSD| Support| 12
4XB7A79649| BNF4| ThinkSystem 2.5″ U.3 7450 PRO 7.68TB Read Intensive NVMe PCIe 4.0 x4 HS SSD| Support| 12
4XB7A83097| BQAV| ThinkSystem 2.5″ U.3 7450 PRO 15.36TB Read Intensive NVMe PCIe 4.0 x4 HS SSD| Support| 12

Table 36. 7mm 2.5-inch hot-swap 6 Gb SATA SSDs

Part number| Feature code| Description| SED support| Max Qty
---|---|---|---|---
7mm 2.5-inch hot-swap SSDs – 6 Gb SATA – Read Intensive/Entry ( <3 DWPD)
4XB7A82264| BQ1U| ThinkSystem 7mm 5400 PRO 240GB Read Intensive SATA 6Gb HS SSD| Support| 2
4XB7A82265| BQ1V| ThinkSystem 7mm 5400 PRO 480GB Read Intensive SATA 6Gb HS SSD| Support| 2
4XB7A82266| BQ1W| ThinkSystem 7mm 5400 PRO 960GB Read Intensive SATA 6Gb HS SSD| Support| 2
4XB7A17106| BK79| ThinkSystem 7mm S4520 240GB Read Intensive SATA 6Gb HS SSD| No| 2
4XB7A17107| BK7A| ThinkSystem 7mm S4520 480GB Read Intensive SATA 6Gb HS SSD| No| 2
4XB7A17108| BK7B| ThinkSystem 7mm S4520 960GB Read Intensive SATA 6Gb HS SSD| No| 2

Table 37. 7mm 2.5-inch hot-swap PCIe 4.0 NVMe SSDs

Part number| Feature code| Description| SED support| Max Qty
---|---|---|---|---
7mm 2.5-inch hot-swap SSDs – PCIe 4.0 NVMe – Read Intensive/Entry ( <3 DWPD)
4XB7A90096| BXMN| ThinkSystem 7mm U.2 PM9A3 960GB Read Intensive NVMe PCIe 4.0 x4 HS SSD| Support| 2
4XB7A90097| BXMM| ThinkSystem 7mm U.2 PM9A3 1.92TB Read Intensive NVMe PCIe 4.0 x4 HS SSD| Support| 2
4XB7A90098| BXML| ThinkSystem 7mm U.2 PM9A3 3.84TB Read Intensive NVMe PCIe 4.0 x4 HS SSD| Support| 2
4XB7A82853| BPZ4| ThinkSystem 7mm U.3 7450 PRO 960GB Read Intensive NVMe PCIe 4.0 x4 HS SSD| Support| 2
4XB7A82855| BPZ5| ThinkSystem 7mm U.3 7450 PRO 1.92TB Read Intensive NVMe PCIe 4.0 x4 HS SSD| Support| 2
4XB7A82856| BPZ6| ThinkSystem 7mm U.3 7450 PRO 3.84TB Read Intensive NVMe PCIe 4.0 x4 HS SSD| Support| 2

Table 38. E1.S EDSFF hot-swap PCIe 4.0 NVMe SSDs

Part number| Feature code| Description| SED support| Max Qty
---|---|---|---|---
E1.S hot-swap SSDs – PCIe 4.0 NVMe – Read Intensive/Entry ( <3 DWPD)
4XB7A13998| BP3L| ThinkSystem E1.S 5.9mm 7450 PRO 3.84TB Read Intensive NVMe PCIe 4.0 x4 HS SSD| Support| 16
4XB7A80499| BPKW| ThinkSystem E1.S 5.9mm 7450 PRO 7.68TB Read Intensive NVMe PCIe 4.0 x4 HS SSD| Support| 16

Table 39. M.2 SATA drives

Part number| Feature code| Description| SED support| Max Qty
---|---|---|---|---
M.2 SSDs – 6 Gb SATA – Read Intensive/Entry ( <3 DWPD)
4XB7A89422| BYF7| ThinkSystem M.2 ER3 240GB Read Intensive SATA 6Gb NHS SSD| Support| 2
4XB7A90049| BYF8| ThinkSystem M.2 ER3 480GB Read Intensive SATA 6Gb NHS SSD| Support| 2
4XB7A90230| BYF9| ThinkSystem M.2 ER3 960GB Read Intensive SATA 6Gb NHS SSD| Support| 2
4XB7A82286| BQ1Z| ThinkSystem M.2 5400 PRO 240GB Read Intensive SATA 6Gb NHS SSD| Support| 2
4XB7A82287| BQ1Y| ThinkSystem M.2 5400 PRO 480GB Read Intensive SATA 6Gb NHS SSD| Support| 2
4XB7A82288| BQ20| ThinkSystem M.2 5400 PRO 960GB Read Intensive SATA 6Gb NHS SSD| Support| 2
7N47A00130| AUUV| ThinkSystem M.2 128GB SATA 6Gbps Non-Hot Swap SSD| No| 2

Table 40. M.2 PCIe 4.0 NVMe drives

Part number| Feature code| Description| SED support| Max Qty
---|---|---|---|---
M.2 SSDs – PCIe 4.0 NVMe – Read Intensive/Entry ( <3 DWPD)
4XB7A90102| BXMH| ThinkSystem M.2 PM9A3 960GB Read Intensive NVMe PCIe 4.0 x4 NHS SSD| Support| 2
4XB7A13999| BKSR| ThinkSystem M.2 7450 PRO 960GB Read Intensive NVMe PCIe 4.0 x4 NHS SSD| Support| 2

USB memory key

For general portable storage needs, the server also supports the USB memory key option that is listed in the following table.
Table 41. USB memory key

Internal backup units
The server does not supports any internal backup units, such as tape drives or RDX drives. External backup units are available as described in the External backup units section.
Optical drives
The server supports the external USB optical drive listed in the following table.
Table 42. External optical drive

The drive is based on the Lenovo Slim DVD Burner DB65 drive and supports the following formats: DVDRAM, DVD-RW, DVD+RW, DVD+R, DVD-R, DVD-ROM, DVD-R DL, CD-RW, CD-R, CD-ROM.

I/O expansion
The SR635 V3 supports a total of up to 5x PCIe slots, 3x at the rear and 2x at the front, plus 1x OCP 3.0 SFF slot for networking. The OCP slot can be either at the front or rear. Slot availability is based on riser selection and drive bays configured.
Topics in this section:

• Rear slots
• Front slots
• Serial port

Rear slots
The following figure shows the locations of the rear-accessible and front- accessible slots for each configuration selection. The OCP slot is located below the PCIe slots.

The rear-accessible slots and riser cards are as follows:

• Riser 1: Slots 1 & 2
  • Slot 1: Low Profile, PCIe x16
  • Slot 2: Low Profile or FHHL, PCIe x16 (only in configuration A, B, and E in the above figure)
• Riser 2: Slot 3
  • Slot 3: Low Profile or FHHL, PCIe x16 (only in configuration A and C)

Depending on the riser selected, the slots are either PCIe Gen4 or PCIe Gen5. Some configurations are only available with Gen4 slots.
The following table lists the configuration and ordering information for the PCIe slots in the SR635 V3. The Cfg column matches the slot configurations shown in the preceding figure. The table is divided up into configurations with Gen5 slots with Gen4, and configurations with only Gen4 slots. Ordering information is as follows:
For CTO orders, order the feature codes listed for the configuration, both riser and cage feature codes (2 or 4 feature codes, depending on the configuration)
For field upgrades, order the part numbers listed for the configuration (1 or 2 part numbers, depending on the configuration). The part numbers include both the risers and cages needed for that configuration.
It is also possible to build a configuration without any slots, in which case slot fillers will be derived in the configurator. Slots can be added later as field upgrades using option part numbers as listed in the Field upgrades table.
Maximum 2x Gen5 slots: The maximum number of PCIe Gen5 slots is 2. It is not currently possible to configure 3x PCIe Gen5 low-profile slots.

Table 43. Riser slot ordering information

Cfg| Part number| Features| Part number description| Slot **configuration* (Green = Gen5, Blue = Gen4)| Purpose
---|---|---|---|---|---
Riser| Cage**
Rear slots – Gen5 slots (with some Gen4 slots)| Slot 1| Slot 2| Slot 3| Purpose
A| 4XH7A83845| BLKB| BLK9| ThinkSystem V3 1U x16/x16 PCIe G5 Riser1 LP+LP| Gen4 x16| Gen5 x16| | 3x Low Profile slots (2x Gen5, 1x Gen4)
4XH7A83843| BLKA or BVHN| BLK6| ThinkSystem V3 1U x16 PCIe G5 Riser 2 Option Kit| | | Gen5 x16
A| 4XH7A83847| BLKF| BLK9| ThinkSystem V3 1U x16/x16 PCIe G4 Riser1 LP+LP Option Kit| Gen4 x16| Gen4 x16| | 3x Low Profile slots (1x Gen5, 2x Gen4)
4XH7A83843| BLKA or BVHN| BLK6| ThinkSystem V3 1U x16 PCIe G5 Riser 2 Option Kit| | | Gen5 x16
C| 4XH7A86136| BLK7| BP3A| ThinkSystem SR635 V3 PCIe G5 Riser1 LP Option Kit| Gen5 x16| No slot| | 2x slots: 1LP + 1FH, two risers (2x Gen5)
4XH7A86137| BLKA or BVHN| ThinkSystem SR635 V3 PCie G5 Riser2 FH Option Kit| | | Gen5 x16
Rear slots – Gen4 slots| Slot 1| Slot 2| Slot 3| Purpose
A| 4XH7A83847| BLKF| BLK9| ThinkSystem V3 1U x16/x16 PCIe G4 Riser1 LP+LP Option Kit| Gen4 x16| Gen4 x16| | 3x Low Profile slots (2x Gen4)
4XH7A83849| BLKG| BLK6| ThinkSystem V3 1U x16 PCIe G4 Riser 2 Option Kit| | | Gen4 x16
B| 4XH7A83846| BLKF| BLK8| ThinkSystem V3 1U x16/x16 PCIe G4 Riser1 LP+FH Option Kit| Gen4 x16| Gen4 x16| No slot| 2x slots, 1xLP+1xFH, same riser (2x Gen4)
D| 4XH7A83848| BLKE| BLK6| ThinkSystem V3 1U x16 PCIe G4 Riser 1 with Rear drive| Gen4 x16| Drive| Drive| Supports 2x 2.5-inch drives (1x Gen4 slot)
E| 4XH7A83847| BLKF| BLK9| ThinkSystem V3 1U x16/x16 PCIe G4 Riser1 LP+LP Option Kit| Gen4 x16| Gen4 x16| Drives| Supports 2x 7mm drives (2x Gen4 slots)

Configuration rules:

• For best performance, install PCIe 5.0 adapters in PCIe 5.0 (Gen5) slots

Front slots
As an addition or alternative to the rear slots, the SR635 V3 supports slots at the front of the server.
The following figure shows the locations of the front-accessible slots.The front-accessible slots and riser cards are as follows:

• Slot 4: Low Profile, PCIe 4.0 x16
• Slot 5: FHHL, PCIe 4.0 x16
• Slot 6: OCP 3.0 slot (PCIe 4.0 x16)

Ordering information is listed in the following table.
Table 44. Front slots

Slot 4 (Riser 3)
CTO only| BQ2H| ThinkSystem SR630 V3/SR635 V3 Front x16 LP PCIe G4 Riser3
Slot 5 (Riser 4)
CTO only| BQ2G| ThinkSystem V3 1U Front x16 FHFL PCIe G4 Riser4

Configuration notes:

• The use of front slots requires base feature code BQ7M as described in the Base feature codes section
• Front slots can be used in conjunction with rear drive bays. See the table of configurations in the
• Overview – 2.5-inch front bays with front slots section for specifics.
• The front OCP slot is automatically derived by the configurator with riser 4 (slot 5)
• The front and rear OCP slots are mutually exclusive; when the front OCP slot is configured, the rear OCP slot is disconnected
• The use of the closed-loop liquid-cooled processor heatsink is not supported
• The use of the security bezel is not supported

Serial port
The SR635 V3 optionally supports a RS-232 serial port by adding a COM port bracket to slot 3. Ordering information is shown in the following table.
No front slot support: The serial port is not supported in the front PCIe slots
Table 45. Serial port

The bracket is shown in the following figure. The option part number includes both Low Profile and Full Height brackets. Network adapters
The server has a dedicated OCP 3.0 SFF slot with PCIe 5.0 x16 host interface. See Figure 3 for the location of the OCP slot. If front slots are configured, the OCP slot is instead located at the front of the server. Only 1 OCP card can be installed in the server.
The following table lists the supported OCP adapters. One port can optionally be shared with the XCC management processor for Wake-on-LAN and NC-SI support.
Table 46. Supported OCP adapters

Part number| Feature code| Description| Maximum supported| Windows 10/11 support
---|---|---|---|---
Gigabit Ethernet
4XC7A08235| B5T1| ThinkSystem Broadcom 5719 1GbE RJ45 4-port OCP Ethernet Adapter| 1| Supported
4XC7A88428| BW97| ThinkSystem Intel I350 1GbE RJ45 4-Port OCP Ethernet Adapter V2| 1| Supported
4XC7A08277| B93E| ThinkSystem Intel I350 1GbE RJ45 4-port OCP Ethernet Adapter| 1| Supported
10 Gb Ethernet – 10GBASE-T
4XC7A08236| B5ST| ThinkSystem Broadcom 57416 10GBASE-T 2-port OCP Ethernet Adapter| 1| Supported
4XC7A08240| B5T4| ThinkSystem Broadcom 57454 10GBASE-T 4-port OCP Ethernet Adapter| 1| Supported
4XC7A08278| BCD5| ThinkSystem Intel X710-T2L 10GBASE-T 2-port OCP Ethernet Adapter| 1| Supported
4XC7A80268| BPPY| ThinkSystem Intel X710-T4L 10GBase-T 4-Port OCP Ethernet Adapter| 1| Supported
25 Gb Ethernet
4XC7A08237| BN2T| ThinkSystem Broadcom 57414 10/25GbE SFP28 2-Port OCP Ethernet Adapter| 1| Supported
4XC7A80567| BPPW| ThinkSystem Broadcom 57504 10/25GbE SFP28 4-Port OCP Ethernet Adapter| 1| Supported
4XC7A08294| BCD4| ThinkSystem Intel E810-DA2 10/25GbE SFP28 2-Port OCP Ethernet Adapter| 1| Supported
4XC7A62582| BE4T| ThinkSystem Mellanox ConnectX-6 Lx 10/25GbE SFP28 2-Port OCP Ethernet Adapter| 1| Supported
100 Gb Ethernet
4XC7A08243| BPPX| ThinkSystem Broadcom 57508 100GbE QSFP56 2-Port OCP Ethernet Adapter| 1| Supported

The following table lists additional supported network adapters that can be installed in the regular PCIe slots.
Table 47. Supported PCIe Network Adapters

Part number| Feature code| Description| Form factor| Maximum quantity| Slots supported| Windows 10/11 support
---|---|---|---|---|---|---
Gigabit Ethernet
7ZT7A00484| AUZV| ThinkSystem Broadcom 5719 1GbE RJ45 4- Port PCIe Ethernet Adapter| Low profile| 5| 1,2,3,4,5§| Supported
7ZT7A00535| AUZW| ThinkSystem I350-T4 PCIe 1Gb 4-Port RJ45 Ethernet Adapter| Low profile| 5| 1,2,3,4,5§| Supported
10 Gb Ethernet – 10GBASE-T
7ZT7A00496| AUKP| ThinkSystem Broadcom 57416 10GBASE-T 2-Port PCIe Ethernet Adapter| Low profile| 5| 1,2,3,4,5| Supported
4XC7A08245| B5SU| ThinkSystem Broadcom 57454 10GBASE-T 4-port PCIe Ethernet Adapter| Low profile| 3| 1,2,3§| Supported
4XC7A80266| BNWL| ThinkSystem Intel X710-T2L 10GBase-T 2- Port PCIe Ethernet Adapter| Low profile| 5| 1,2,3,4,5| Supported
4XC7A79699| BMXB| ThinkSystem Intel X710-T4L 10GBase-T 4- Port PCIe Ethernet Adapter| Low profile| 5| 1,2,3,4,5| Supported
25 Gb Ethernet
4XC7A84827| BUQK| ThinkSystem AMD X3522 10/25GbE DSFP28 2-Port PCIe Ethernet Adapter (Low Latency)| Low profile| 4| 1,2,3,5| Supported
4XC7A80566| BNWM| ThinkSystem Broadcom 57504 10/25GbE SFP28 4-Port PCIe Ethernet Adapter| FHHL| 2| 2,3,5†| Supported
4XC7A08238| BK1H| ThinkSystem Broadcom 57414 10/25GbE SFP28 2-port PCIe Ethernet Adapter| Low profile| 5| 1,2,3,4,5| Supported
4XC7A08295| BCD6| ThinkSystem Intel E810-DA2 10/25GbE SFP28 2-Port PCIe Ethernet Adapter| Low profile| 5| 1,2,3,4,5| Supported
4XC7A80267| BP8M| ThinkSystem Intel E810-DA4 10/25GbE SFP28 4-Port PCIe Ethernet Adapter| Low profile| 5| 1,2,3,4,5| Supported
4XC7A62580| BE4U| ThinkSystem Mellanox ConnectX-6 Lx 10/25GbE SFP28 2-Port PCIe Ethernet Adapter| Low profile| 5| 1,2,3,4,5| Supported
100 Gb Ethernet
4XC7A08297| BK1J| ThinkSystem Broadcom 57508 100GbE QSFP56 2-port PCIe 4 Ethernet Adapter| Low profile| 4| 1,2,3,5| Supported
4XC7A08248| B8PP| ThinkSystem Mellanox ConnectX-6 Dx 100GbE QSFP56 2-port PCIe 4 Ethernet Adapter| Low profile| 4| 1,2,3,5| Supported
200 Gb Ethernet / InfiniBand HDR/NDR200
4C57A15326| B4RC| ThinkSystem Mellanox ConnectX-6 HDR/200GbE QSFP56 1-port PCIe 4 VPI Adapter| Low profile| 4| 1,2,3,5| No
4XC7A81883| BQBN| ThinkSystem NVIDIA ConnectX-7 NDR200/200GbE QSFP112 2-port PCIe Gen5 x16 InfiniBand Adapter| Low profile| 2| 1,3| No
400 Gb / NDR400 InfiniBand
4XC7A80289| BQ1N| ThinkSystem NVIDIA ConnectX-7 NDR OSFP400 1-Port PCIe Gen5 x16 InfiniBand Adapter| Low profile| 2| 1,3| No

† In the SR635 V3, this adapter requires a full-height bracket and must be installed in a full-height slot. The use of a low-profile bracket and slot is not supported.
§ Not supported installed in slot 1 of the LP+FH riser cage (configuration B in the I/O expansion section)
For more information, including the transceivers and cables that each adapter supports, see the list of Lenovo Press Product Guides in the Networking adapters category:
https://lenovopress.com/servers/options/ethernet
Configuration rules:

• The following adapters are not supported installed into LP+FH riser cage (configuration B in the I/O expansion section)
  • ThinkSystem Broadcom 5719 1GbE RJ45 4-Port PCIe Ethernet Adapter, 7ZT7A00484
  • ThinkSystem I350-T4 PCIe 1Gb 4-Port RJ45 Ethernet Adapter, 7ZT7A00535
  • ThinkSystem Broadcom 57454 10GBASE-T 4-port PCIe Ethernet Adapter, 4XC7A08245
• E810 Ethernet and X350 RAID/HBAs: The use of both an Intel E810 network adapter and an X350 HBA/RAID adapter (9350, 5350 and 4350) is currently not supported in ThinkSystem servers. For details see Support Tip HT513226. Planned support for this combination of adapters is 3Q/2024.

Fibre Channel host bus adapters

The following table lists the Fibre Channel HBAs supported by the SR635 V3.
No Windows 10/11 support: None of the adapters listed in the table are supported with Windows 10 or Windows 11.
Table 48. Fibre Channel HBAs

Part number| Feature code| Description| Maximum quantity| Slots supported
---|---|---|---|---
64 Gb Fibre Channel
4XC7A77485| BLC1| ThinkSystem Emulex LPe36002 64Gb 2-port PCIe Fibre Channel Adapter| 5| 1,2,3,4,5
32 Gb Fibre Channel
4XC7A76498| BJ3G| ThinkSystem Emulex LPe35000 32Gb 1-port PCIe Fibre Channel Adapter v2| 5| 1,2,3,4,5
4XC7A76525| BJ3H| ThinkSystem Emulex LPe35002 32Gb 2-port PCIe Fibre Channel Adapter v2| 5| 1,2,3,4,5
4XC7A08279| BA1G| ThinkSystem QLogic QLE2770 32Gb 1-Port PCIe Fibre Channel Adapter| 5| 1,2,3,4,5
4XC7A08276| BA1F| ThinkSystem QLogic QLE2772 32Gb 2-Port PCIe Fibre Channel Adapter| 5| 1,2,3,4,5
16 Gb Fibre Channel
01CV830| ATZU| Emulex 16Gb Gen6 FC Single-port HBA| 5| 1,2,3,4,5
01CV840| ATZV| Emulex 16Gb Gen6 FC Dual-port HBA| 5| 1,2,3,4,5
01CV750| ATZB| QLogic 16Gb Enhanced Gen5 FC Single-port HBA| 5| 1,2,3,4,5
01CV760| ATZC| QLogic 16Gb Enhanced Gen5 FC Dual-port HBA| 5| 1,2,3,4,5

For more information, see the list of Lenovo Press Product Guides in the Host bus adapters category: https://lenovopress.com/servers/options/hba

SAS adapters for external storage

The following table lists SAS HBAs and RAID adapters supported by SR635 V3 server for use with external storage.
No Windows 10/11 support: None of the adapters listed in the table are supported with Windows 10 or Windows 11.
Table 49. Adapters for external storage

Part number| Feature code| Description| Maximum supported| Slots supported
---|---|---|---|---
SAS HBAs
4Y37A78837| BNWK| ThinkSystem 440-8e SAS/SATA PCIe Gen4 12Gb HBA| 5| 1,2,3,4,5
4Y37A09724| B8P7| ThinkSystem 440-16e SAS/SATA PCIe Gen4 12Gb HBA| 5| 1,2,3,4,5
External RAID adapters
4Y37A78836| BNWJ| ThinkSystem RAID 940-8e 4GB Flash PCIe Gen4 12Gb Adapter| 2| 1,2,3*

• See configuration rules below regarding supercap requirements
  For a comparison of the functions of the supported storage adapters, see the ThinkSystem RAID Adapter and HBA Reference:
  https://lenovopress.lenovo.com/lp1288#sr635-v3-support=SR635%2520V3&internal- or- externalports=External
  Configuration rules

  • The RAID 940-8e uses a flash power module (supercap), and the SR635 V3 supports only 2 supercaps depending on the configuration. See the RAID flash power module (supercap) support section for details.

For more information, see the list of Lenovo Press Product Guides in the Host bus adapters and RAID adapters categories:
https://lenovopress.com/servers/options/hba
https://lenovopress.com/servers/options/raid
Flash storage adapters
The SR635 V3 currently does not support any Flash storage adapters.
GPU adapters
The SR635 V3 supports the following graphics processing units (GPUs).
Table 50. Supported GPUs

Part number| Feature code| Description| TDP| Maximum supported| Slots supported| Windows 10/11

support

---|---|---|---|---|---|---
4X67A84824| BS2C| ThinkSystem NVIDIA L4 24GB PCIe Gen4 Passive GPU| 72W| 4| 1,2,3,5| Supported
4X67A81547| BP05| ThinkSystem NVIDIA A2 16GB PCIe Gen4 Passive GPU| 60W| 4| 1,2,3,5| Supported
CTO only| BQZT| ThinkSystem NVIDIA A2 16GB PCIe Gen4 Passive GPU w/o CEC| 60W| 4| 1,2,3,5| Supported

* See configuration rules below
For information about these GPUs, see the ThinkSystem GPU Summary, available at:
https://lenovopress.com/lp0768-thinksystem-thinkagile-gpu-summary
Configuration rules
The following configuration requirements must be met when installing GPUs:

• All GPUs installed must be identical
• Rear drive bays bays are not supported
• Flash storage adapters are not supported.
• Maximum ambient temperature is 30°C
• Performance fans are required and will be derived by the configurator for configure-to-order builds.
• When adding GPUs as field upgrades, you will be required to replace all Standard fans with
• Performance fans. See the Cooling section for ordering information.

Cooling
The SR635 V3 server has up to seven 40 mm dual-rotor hot-swap variable-speed fans. Five, six or seven fans are required depending on the configuration of the server. System fans are either Standard fans (21K RPM, dual-rotor) or Performance fans (28K RPM, dual-rotor), depending on the configuration. The server offers N+1 rotor redundancy.
The server also has one additional fan integrated in each of the two power supplies.
Most configurations require 6 performance fans.
The following configuration requires 7 fans:

• EDSFF drive bays + (OCP adapter or GPUs or adapter in slot 1)
• Front PCIe slots

Five fans are sufficient for the following configuration (all must apply):

• 10x 2.5-inch chassis (no front PCIe slots, no EDSFF)
• No OCP adapter
• No adapter in PCIe slot 1
• No GPUs installed
• No rear drive bays

Most configurations require performance fans. Standard fans are sufficient for the following configuration (all must apply):
10x 2.5-inch chassis (no front PCIe slots, no EDSFF)
CPU < 240W TDP
No rear drives
No GPUs
No networking ≥ 100GbE
For additional information, see the Thermal rules page for the SR635 V3 on the Lenovo documentation site:
http://pubs.lenovo.com/sr635-v3/thermal_rules
Ordering information for the fans is listed in the following table.
Table 51. Fan ordering information

Power supplies
The SR635 V3 supports up to two redundant hot-swap power supplies.
The power supply choices are listed in the following table. Both power supplies used in server must be identical.
Tip: When configuring a server in the DCSC configurator, power consumption is calculated precisely by interfacing with Lenovo Capacity Planner. You can therefore select the appropriate power supply for your configuration. However, do consider future upgrades that may require additional power needs.
Table 52. Power supply options

Part number| Feature code| Description| Maximum quantity| 110V AC| 220V AC| 240V DC China only| – 48V DC
---|---|---|---|---|---|---|---
AC input power – 80 PLUS Titanium efficiency
4P57A82019| BR1X| ThinkSystem 750W 230V Titanium Hot-Swap Gen2 Power Supply v3| 2| No| Yes| Yes| No
CTO only| C07V| ThinkSystem 750W 230V Titanium Hot-Swap Gen2 Power Supply v4| 2| No| Yes| Yes| No
4P57A72666| BLKH| ThinkSystem 1100W 230V Titanium Hot-Swap Gen2 Power Supply| 2| No| Yes| Yes| No
4P57A78359| BPK9| ThinkSystem 1800W 230V Titanium Hot-Swap Gen2 Power Supply| 2| No| Yes| Yes| No
AC input power – 80 PLUS Platinum efficiency
4P57A72670| BNFG| ThinkSystem 750W 230V/115V Platinum Hot- Swap Gen2 Power Supply v3| 2| Yes| Yes| Yes| No
4P57A72671| BNFH| ThinkSystem 1100W 230V/115V Platinum Hot- Swap Gen2 Power Supply v3| 2| Yes| Yes| Yes| No
4P57A26294| BMUF| ThinkSystem 1800W 230V Platinum Hot-Swap Gen2 Power Supply| 2| No| Yes| Yes| No
-48V DC input power
4P57A26296| B8QE| ThinkSystem 1100W -48V DC Hot-Swap Gen2 Power Supply| 2| No| No| No| Yes

Supported power supplies are auto-sensing dual-voltage units, supporting both 110V AC (100-127V 50/60 Hz) and 220V AC (200-240V 50/60 Hz) power. For China customers, all power supplies support 240V DC.
All supported AC power supplies have a C14 connector.
The supported -48V DC power supply has a Weidmuller TOP 4GS/3 7.6 terminal as shown in the following figure.Power supply options do not include a line cord. For server configurations, the inclusion of a power cord is model dependent. Configure-to-order models can be configured without power cords if desired.
Power supply LEDs
The supported hot-swap power supplies have the following LEDs:

• Power input LED:
  • Green: The power supply is connected to the AC power source
  • Off: The power supply is disconnected from the AC power source or a power problem has occurred
• Power output LED:
  • Green: The server is on and the power supply is working normally
  • Blinking green: The power supply is in Zero-output/Standby mode (see below)
  • Off: The server is powered off, or the power supply is not working properly
• Power supply error LED:
  • Off: The power supply is working normally
  • Yellow: The power supply has failed

Zero-output mode: When Zero-output mode (also known as Standby mode or Cold Redundancy mode) is configured in XCC and the server power load is sufficiently low, one of the installed power supplies enters into the Standby state while the other one delivers entire load. When the power load increases, the standby power supply will switch to Active state to provide sufficient power to the server. Zero-output mode can be enabled or disabled in the XClarity Controller web interface, Server Configuration > Power Policy. If you select Disable, then both power supplies will be in the Active state.
Power cords
Line cords and rack power cables with C13 connectors can be ordered as listed in the following table.
110V customers: If you plan to use the 1100W power supply with a 110V power source, select a power cable that is rated above 10A. Power cables that are rated at 10A or below are not supported with 110V power.
Table 53. Power cords

Rack cables – C13 to C14
SL67B08593| BPHZ| 0.5m, 10A/100-250V, C13 to C14 Jumper Cord
00Y3043| A4VP| 1.0m, 10A/100-250V, C13 to IEC 320-C14 Rack Power Cable
4L67A08367| B0N5| 1.0m, 13A/100-250V, C13 to C14 Jumper Cord
39Y7937| 6201| 1.5m, 10A/100-250V, C13 to IEC 320-C14 Rack Power Cable
4L67A08368| B0N6| 1.5m, 13A/100-250V, C13 to C14 Jumper Cord
4L67A08365| B0N4| 2.0m, 10A/100-250V, C13 to IEC 320-C14 Rack Power Cable
4L67A08369| 6570| 2.0m, 13A/100-250V, C13 to C14 Jumper Cord
4L67A08366| 6311| 2.8m, 10A/100-250V, C13 to IEC 320-C14 Rack Power Cable
4L67A08370| 6400| 2.8m, 13A/100-250V, C13 to C14 Jumper Cord
39Y7932| 6263| 4.3m, 10A/100-250V, C13 to IEC 320-C14 Rack Power Cable
4L67A08371| 6583| 4.3m, 13A/100-250V, C13 to C14 Rack Power Cable
Rack cables – C13 to C14 (Y-cable)
00Y3046| A4VQ| 1.345m, 2X C13 to C14 Jumper Cord, Rack Power Cable
00Y3047| A4VR| 2.054m, 2X C13 to C14 Jumper Cord, Rack Power Cable
Rack cables – C13 to C20
39Y7938| 6204| 2.8m, 10A/100-250V, C13 to IEC 320-C20 Rack Power Cable
Rack cables – C13 to C20 (Y-cable)
47C2491| A3SW| 1.2m, 16A/100-250V, 2 Short C13s to Short C20 Rack Power Cable
47C2492| A3SX| 2.5m, 16A/100-250V, 2 Long C13s to Short C20 Rack Power Cable
47C2493| A3SY| 2.8m, 16A/100-250V, 2 Short C13s to Long C20 Rack Power Cable
47C2494| A3SZ| 4.1m, 16A/100-250V, 2 Long C13s to Long C20 Rack Power Cable
Line cords
39Y7930| 6222| 2.8m, 10A/250V, C13 to IRAM 2073 (Argentina) Line Cord
81Y2384| 6492| 4.3m 10A/220V, C13 to IRAM 2073 (Argentina) Line Cord
39Y7924| 6211| 2.8m, 10A/250V, C13 to AS/NZ 3112 (Australia/NZ) Line Cord
81Y2383| 6574| 4.3m, 10A/230V, C13 to AS/NZS 3112 (Aus/NZ) Line Cord
69Y1988| 6532| 2.8m, 10A/250V, C13 to NBR 14136 (Brazil) Line Cord
81Y2387| 6404| 4.3m, 10A/250V, C13 – 2P+Gnd (Brazil) Line Cord
39Y7928| 6210| 2.8m, 220-240V, C13 to GB 2099.1 (China) Line Cord
81Y2378| 6580| 4.3m, 10A/220V, C13 to GB 2099.1 (China) Line Cord
39Y7918| 6213| 2.8m, 10A/250V, C13 to DK2-5a (Denmark) Line Cord
81Y2382| 6575| 4.3m, 10A/230V, C13 to DK2-5a (Denmark) Line Cord
39Y7917| 6212| 2.8m, 10A/230V, C13 to CEE7-VII (Europe) Line Cord
81Y2376| 6572| 4.3m, 10A/230V, C13 to CEE7-VII (Europe) Line Cord
---|---|---
39Y7927| 6269| 2.8m, 10A/250V, C13(2P+Gnd) (India) Line Cord
81Y2386| 6567| 4.3m, 10A/240V, C13 to IS 6538 (India) Line Cord
39Y7920| 6218| 2.8m, 10A/250V, C13 to SI 32 (Israel) Line Cord
81Y2381| 6579| 4.3m, 10A/230V, C13 to SI 32 (Israel) Line Cord
39Y7921| 6217| 2.8m, 220-240V, C13 to CEI 23-16 (Italy/Chile) Line Cord
81Y2380| 6493| 4.3m, 10A/230V, C13 to CEI 23-16 (Italy/Chile) Line Cord
46M2593| A1RE| 2.8m, 12A/125V, C13 to JIS C-8303 (Japan) Line Cord
4L67A08362| 6495| 4.3m, 12A/200V, C13 to JIS C-8303 (Japan) Line Cord
39Y7926| 6335| 4.3m, 12A/100V, C13 to JIS C-8303 (Japan) Line Cord
39Y7922| 6214| 2.8m, 10A/250V, C13 to SABS 164 (S Africa) Line Cord
81Y2379| 6576| 4.3m, 10A/230V, C13 to SABS 164 (South Africa) Line Cord
39Y7925| 6219| 2.8m, 220-240V, C13 to KETI (S Korea) Line Cord
81Y2385| 6494| 4.3m, 12A/220V, C13 to KSC 8305 (S. Korea) Line Cord
39Y7919| 6216| 2.8m, 10A/250V, C13 to SEV 1011-S24507 (Swiss) Line Cord
81Y2390| 6578| 4.3m, 10A/230V, C13 to SEV 1011-S24507 (Sws) Line Cord
23R7158| 6386| 2.8m, 10A/125V, C13 to CNS 10917-3 (Taiwan) Line Cord
81Y2375| 6317| 2.8m, 10A/240V, C13 to CNS 10917-3 (Taiwan) Line Cord
81Y2374| 6402| 2.8m, 13A/125V, C13 to CNS 60799 (Taiwan) Line Cord
4L67A08363| AX8B| 4.3m, 10A 125V, C13 to CNS 10917 (Taiwan) Line Cord
81Y2389| 6531| 4.3m, 10A/250V, C13 to 76 CNS 10917-3 (Taiwan) Line Cord
81Y2388| 6530| 4.3m, 13A/125V, C13 to CNS 10917 (Taiwan) Line Cord
39Y7923| 6215| 2.8m, 10A/250V, C13 to BS 1363/A (UK) Line Cord
81Y2377| 6577| 4.3m, 10A/230V, C13 to BS 1363/A (UK) Line Cord
90Y3016| 6313| 2.8m, 10A/120V, C13 to NEMA 5-15P (US) Line Cord
46M2592| A1RF| 2.8m, 10A/250V, C13 to NEMA 6-15P Line Cord
00WH545| 6401| 2.8m, 13A/120V, C13 to NEMA 5-15P (US) Line Cord
4L67A08359| 6370| 4.3m, 10A/125V, C13 to NEMA 5-15P (US) Line Cord
4L67A08361| 6373| 4.3m, 10A/250V, C13 to NEMA 6-15P (US) Line Cord
4L67A08360| AX8A| 4.3m, 13A/120V, C13 to NEMA 5-15P (US) Line Cord

-48V DC power cord
For the -48V DC Power Supply, the following power cable is supported.
Table 54. -48V DC power cable

Systems management

The SR635 V3 contains an integrated service processor, XClarity Controller 2 (XCC), which provides advanced control, monitoring, and alerting functions. The XCC2 is based on the AST2600 baseboard management controller (BMC) using a dual-core ARM Cortex A7 32-bit RISC service processor running at 1.2 GHz.
Topics in this section:

• System I/O Board
• Local management
• System status with XClarity Mobile
• Remote management
• XCC2 Platinum
• Lenovo XClarity Provisioning Manager
• Lenovo XClarity Administrator
• Lenovo XClarity Integrators
• Lenovo XClarity Essentials
• Lenovo XClarity Energy Manager
• Lenovo Capacity Planner

System I/O Board
The SR635 V3 implements a separate System I/O Board that connects to the Processor Board. The location of the System I/O Board is shown in the Components and connectors section. The System I/O Board contains all the connectors visible at the rear of the server as shown in the following figure.The board also has the following components:

• XClarity Controller 2, implemented using the ASPEED AST2600 baseboard management controller (BMC).
• Root of Trust (RoT) module – a daughter card that implements Platform Firmware Resiliency (PFR) hardware Root of Trust (RoT) which enables the server to be NIST SP800-193 compliant. For more details about PFR, see the Security section.
• Connector to enable an additional redundant Ethernet connection to the XCC2 controller. The connector is used in conjunction with the ThinkSystem V3 Management NIC Adapter Kit (4XC7A85319). For details, see the Remote management section.
• Internal USB port – to allow the booting of an operating system from a USB key. The VMware ESXi preloads use this port for example. Preloads are described in the Operating system support section.
• MicroSD card port to enable the use of a MicroSD card for additional storage for use with the XCC2 controller. XCC2 can use the storage as a Remote Disc on Card (RDOC) device (up to 4GB of storage). It can also be used to store firmware updates (including N-1 firmware history) for ease of deployment.

Tip: Without a MicroSD card installed, the XCC2 controller will have 100MB of available RDOC storage.

Ordering information for the supported USB drive and Micro SD card are listed in the following table.
Table 55. Media for use with the System I/O Board

Local management
The SR635 V3 offers a front operator panel with key LED status indicators, as shown in the following figure.
Tip: The Network LED only shows network activity of the installed OCP network adapter. Light path diagnostics
The server offers light path diagnostics. If an environmental condition exceeds a threshold or if a system component fails, the XCC lights LEDs inside the server to help you diagnose the problem and find the failing part. The server has fault LEDs next to the following components:

• Each memory DIMM
• Each drive bay
• Each power supply

Integrated Diagnostics Panel for 8x 2.5-inch and EDSFF configurations
For configurations with 8x 2.5-inch drive bays or 16x EDSFF drive bays at the front, the server can optionally be configured to have a pull-out Integrated Diagnostics Panel. The following figure shows the configurations with the standard (fixed) operator panel and the optional Integrated Diagnostics Panel.The Integrated Diagnostics Panel allows quick access to system status, firmware, network, and health information. The LCD display on the panel and the function buttons give you access to the following information:

• Active alerts
• Status Dashboard
• System VPD: machine type & mode, serial number, UUID string
• System firmware levels: UEFI and XCC firmware
• XCC network information: hostname, MAC address, IP address, DNS addresses
• Environmental data: Ambient temperature, CPU temperature, AC input voltage, estimated power consumption
• Active XCC sessions
• System reset action

The Integrated Diagnostics Panel can be configured as listed in the following table. It is only available configure-to-order (CTO); not available as a field upgrade.
Table 56. Ordering information for the Integrated Diagnostics Panel

Configuration rules for the Pull-out operator panel:

• Only supported with configurations with 8x 2.5-inch drive bays or with EDSFF drive bays
• Not available as a field upgrade. The component is CTO or on pre-configured models only

Front VGA and External Diagnostics ports
The VGA port at the rear of the server is included in all models, however the VGA port at the front of the server is optional. The ThinkSystem V2/V3 1U Front VGA Cable Option Kit allows you to upgrade your server by adding a VGA video port to the front of the server (if the server does not already come with a front VGA port). When the front VGA is in use, the rear VGA port is automatically disabled.
The SR635 V3 optionally includes a port to connect an External Diagnostics Handset. To include in a server, ensure the appropriate feature code is included, based on the front drive configuration. Field upgrades to add the External Diagnostics port are not available.
Table 57. Front VGA and External Diagnostics ports

Optional VGA port (adds the VGA port to the front of the server)
4X97A12644| BA2Y| ThinkSystem V2/V3 1U Front VGA Cable Option Kit
Optional port for the External Diagnostic Handset (adds the port to the front of the server)
CTO only| BLKD| ThinkSystem 1U V3 10×2.5″ Media Bay w/ Ext. Diagnostics Port
CTO only| B8NN| ThinkSystem 1U V3 8×2.5″ Media Bay w/ External Diagnostics Port

External Diagnostics Handset
The SR635 V3 optionally includes a port to connect an External Diagnostics Handset as described in the previous section. The External Diagnostics Handset has the same functions as the Integrated Diagnostics Panel but has the advantages of not consuming space on the front of the server plus it can be shared among many servers in your data center. The handset has a magnet on the back of it to allow you to easily mount it on a convenient place on any rack cabinet.The following table lists the ordering information for the handset.
Table 58. External Diagnostics Handset ordering information

Information pull-out tab
The front of the server also houses an information pull-out tab (also known as the network access tag). See Figure 2 for the location. A label on the tab shows the network information (MAC address and other data) to remotely access the service processor.
System status with XClarity Mobile
The XClarity Mobile app includes a tethering function where you can connect your Android or iOS device to the server via USB to see the status of the server.
The steps to connect the mobile device are as follows:

1. Enable USB Management on the server, by holding down the ID button for 3 seconds (or pressing the dedicated USB management button if one is present)
2. Connect the mobile device via a USB cable to the server’s USB port with the management symbol
3. In iOS or Android settings, enable Personal Hotspot or USB Tethering
4. Launch the Lenovo XClarity Mobile app

Once connected you can see the following information:

• Server status including error logs (read only, no login required)
• Server management functions (XClarity login credentials required)

Remote management
The server offers a dedicated RJ45 Ethernet port at the rear of the server for remote management via the XClarity Controller 2 management processor. The port supports 10/100/1000 Mbps speeds.
Remote server management is provided through industry-standard interfaces:

• Intelligent Platform Management Interface (IPMI) Version 2.0
• Simple Network Management Protocol (SNMP) Version 3 (no SET commands; no SNMP v1)
• Common Information Model (CIM-XML)
• Representational State Transfer (REST) support
• Redfish support (DMTF compliant)
• Web browser – HTML 5-based browser interface (Java and ActiveX not required) using a responsive design (content optimized for device being used – laptop, tablet, phone) with NLS support

The SR635 V3 also supports the use of an OCP adapter that provides an additional redundant Ethernet connection to the XCC2 controller. Ordering information is listed in the following table.
Table 59. Redundant System Management Port Adapter

The use of this adapter allows concurrent remote access using both the connection on the adapter and the onboard RJ45 remote management port provided by the server. The adapter and onboard port have separate IP addresses.
Configuration rules:

• The Redundant System Management Port Adapter is installed in the OCP adapter slot at the rear of the server and is mutually exclusive with any OCP network adapter.
• It is not supported installed in the front OCP slot (if the front OCP slot is configured)
• If the Redundant System Management Port Adapter is installed in the rear slot, then the front OCP slot (if configured) cannot be used.

The following figure shows the server with the Redundant System Management Port Adapter installed in the OCP slot.IPMI via the Ethernet port (IPMI over LAN) is supported, however it is disabled by default. For CTO orders you can specify whether you want to the feature enabled or disabled in the factory, using the feature codes listed in the following table.
Table 60. IPMI-over-LAN settings

XCC2 Platinum
The XCC2 service processor in the SR635 V3 supports an upgrade to the Platinum level of features.
Compared to the XCC functions of ThinkSystem V2 and earlier systems, Platinum adds the same features as Enterprise and Advanced levels in ThinkSystem V2, plus additional features.
XCC2 Platinum adds the following Enterprise and Advanced functions:

• Remotely viewing video with graphics resolutions up to 1600×1200 at 75 Hz with up to 23 bits per pixel, regardless of the system state

• Remotely accessing the server using the keyboard and mouse from a remote client

• International keyboard mapping support

• Syslog alerting

• Redirecting serial console via SSH

• Component replacement log (Maintenance History log)
  Access restriction (IP address blocking)

• Lenovo SED security key management

• Displaying graphics for real-time and historical power usage data and temperature

• Boot video capture and crash video capture

• Virtual console collaboration – Ability for up to 6 remote users to be log into the remote session simultaneously

• Remote console Java client

• Mapping the ISO and image files located on the local client as virtual drives for use by the server

• Mounting the remote ISO and image files via HTTPS, SFTP, CIFS, and NFS

• System utilization data and graphic view

• Single sign on with Lenovo XClarity Administrator

• Update firmware from a repository

• License for XClarity Energy Manager

Note: The SR635 V3 does not support Power capping.
XCC2 Platinum also adds the following features that are new to XCC2:

• System Guard – Monitor hardware inventory for unexpected component changes, and simply log the event or prevent booting
• Enterprise Strict Security mode – Enforces CNSA 1.0 level security
• Neighbor Group – Enables administrators to manage and synchronize configurations and firmware level across multiple servers

Ordering information is listed in the following table. XCC2 Platinum is a software license upgrade – no additional hardware is required.
Table 61. XCC2 Platinum license upgrade

With XCC2 Platinum, for CTO orders, you can request that System Guard be enabled in the factory and the first configuration snapshot be recorded. To add this to an order, select feature code listed in the following table. The selection is made in the Security tab of the DCSC configurator.
Table 62. Enable System Guard in the factory (CTO orders)

For more information about System Guard, see https://pubs.lenovo.com/xcc2/NN1ia_c_systemguard

Lenovo XClarity Provisioning Manager
Lenovo XClarity Provisioning Manager (LXPM) is a UEFI-based application embedded in ThinkSystem servers and accessible via the F1 key during system boot.
LXPM provides the following functions:

• Graphical UEFI Setup
• System inventory information and VPD update
• System firmware updates (UEFI and XCC)
• RAID setup wizard
• OS installation wizard (including unattended OS installation)
• Diagnostics functions

Lenovo XClarity Administrator

Lenovo XClarity Administrator is a centralized resource management solution designed to reduce complexity, speed response, and enhance the availability of Lenovo systems and solutions. It provides agent-free hardware management for ThinkSystem servers, in addition to ThinkServer, System x, and Flex System servers. The administration dashboard is based on HTML 5 and allows fast location of resources so tasks can be run quickly.
Because Lenovo XClarity Administrator does not require any agent software to be installed on the managed endpoints, there are no CPU cycles spent on agent execution, and no memory is used, which means that up to 1GB of RAM and 1 – 2% CPU usage is saved, compared to a typical managed system where an agent is required.
Lenovo XClarity Administrator is an optional software component for the SR635 V3. The software can be downloaded and used at no charge to discover and monitor the SR635 V3 and to manage firmware upgrades.
If software support is required for Lenovo XClarity Administrator, or premium features such as configuration management and operating system deployment are required, Lenovo XClarity Pro software subscription should be ordered. Lenovo XClarity Pro is licensed on a per managed system basis, that is, each managed Lenovo system requires a license.
The following table lists the Lenovo XClarity software license options.
Table 63. Lenovo XClarity Pro ordering information

Lenovo XClarity Administrator offers the following standard features that are available at no charge:

• Auto-discovery and monitoring of Lenovo systems
• Firmware updates and compliance enforcement
• External alerts and notifications via SNMP traps, syslog remote logging, and e-mail
• Secure connections to managed endpoints
• NIST 800-131A or FIPS 140-2 compliant cryptographic standards between the management solution and managed endpoints
• Integration into existing higher-level management systems such as cloud automation and orchestration tools through REST APIs, providing extensive external visibility and control over hardware resources
• An intuitive, easy-to-use GUI
• Scripting with Windows PowerShell, providing command-line visibility and control over hardware resources

Lenovo XClarity Administrator offers the following premium features that require an optional Pro license:

• Pattern-based configuration management that allows to define configurations once and apply repeatedly without errors when deploying new servers or redeploying existing servers without disrupting the fabric
• Bare-metal deployment of operating systems and hypervisors to streamline infrastructure provisioning

For more information, refer to the Lenovo XClarity Administrator Product Guide: http://lenovopress.com/tips1200

Lenovo XClarity Integrators

Lenovo also offers software plug-in modules, Lenovo XClarity Integrators, to manage physical infrastructure from leading external virtualization management software tools including those from Microsoft and VMware.
These integrators are offered at no charge, however if software support is required, a Lenovo XClarity Pro software subscription license should be ordered.
Lenovo XClarity Integrators offer the following additional features:

• Ability to discover, manage, and monitor Lenovo server hardware from VMware vCenter or Microsoft System Center
• Deployment of firmware updates and configuration patterns to Lenovo x86 rack servers and Flex System from the virtualization management tool
• Non-disruptive server maintenance in clustered environments that reduces workload downtime by dynamically migrating workloads from affected hosts during rolling server updates or reboots
• Greater service level uptime and assurance in clustered environments during unplanned hardware events by dynamically triggering workload migration from impacted hosts when impending hardware failures are predicted

For more information about all the available Lenovo XClarity Integrators, see the Lenovo XClarity Administrator Product Guide: https://lenovopress.com/tips1200-lenovo-xclarity-administrator

Lenovo XClarity Essentials
Lenovo offers the following XClarity Essentials software tools that can help you set up, use, and maintain the server at no additional cost:

• Lenovo Essentials OneCLI
  OneCLI is a collection of server management tools that uses a command line interface program to manage firmware, hardware, and operating systems. It provides functions to collect full system health information (including health status), configure system settings, and update system firmware and drivers.

• Lenovo Essentials UpdateXpress
  The UpdateXpress tool is a standalone GUI application for firmware and device driver updates that enables you to maintain your server firmware and device drivers up-to-date and help you avoid unnecessary server outages. The tool acquires and deploys individual updates and UpdateXpress System Packs (UXSPs) which are integration-tested bundles.

• Lenovo Essentials Bootable Media Creator
  The Bootable Media Creator (BOMC) tool is used to create bootable media for offline firmware update.

For more information and downloads, visit the Lenovo XClarity Essentials web page: http://support.lenovo.com/us/en/documents/LNVO-center
Lenovo XClarity Energy Manager
Lenovo XClarity Energy Manager (LXEM) is a power and temperature management solution for data centers. It is an agent-free, web-based console that enables you to monitor and manage power consumption and temperature in your data center through the management console. It enables server density and data center capacity to be increased through the use of power capping.
LXEM is a licensed product. A single-node LXEM license is included with the XClarity Controller Platinum upgrade as described in the XCC2 Platinum section. If your server does not have the XCC Platinum upgrade, Energy Manager licenses can be ordered as shown in the following table.
Table 64. Lenovo XClarity Energy Manager

server)

Note: The SR635 V3 does not support the following Energy Manager functions:

• Power capping
• Policy-based management

For more information about XClarity Energy Manager, see the following resources:

• Lenovo Support page:
  https://datacentersupport.lenovo.com/us/en/solutions/lnvo-lxem

• User Guide for XClarity Energy Manager:
  https://pubs.lenovo.com/lxem/

Lenovo Capacity Planner
Lenovo Capacity Planner is a power consumption evaluation tool that enhances data center planning by enabling IT administrators and pre-sales professionals to understand various power characteristics of racks, servers, and other devices. Capacity Planner can dynamically calculate the power consumption, current, British Thermal Unit (BTU), and volt-ampere (VA) rating at the rack level, improving the planning efficiency for large scale deployments.
For more information, refer to the Capacity Planner web page:
http://datacentersupport.lenovo.com/us/en/solutions/lnvo-lcp

Security
Topics in this section:

• Security features
• Platform Firmware Resiliency – Lenovo ThinkShield
• Security standards

Security features
The SR635 V3 server offers the following electronic security features:

• Secure Boot function of the AMD EPYC processor
• Support for Platform Firmware Resiliency (PFR) hardware Root of Trust (RoT) – see the Platform Firmware Resiliency section
• Firmware signature processes compliant with FIPS and NIST requirements
• System Guard (part of XCC Platinum) – Proactive monitoring of hardware inventory for unexpected component changes
• Administrator and power-on password
• Integrated Trusted Platform Module (TPM) supporting TPM 2.0
• Self-encrypting drives (SEDs) with support for enterprise key managers – see the SED encryption key management section

The server is NIST SP 800-147B compliant.
The SR635 V3 server also offers the following optional physical security features:

• Optional chassis intrusion switch
• Optional lockable front security bezel

The optional lockable front security bezel is shown in the following figure and includes a key that enables you to secure the bezel over the drives and system controls thereby reducing the chance of unauthorized or accidental access to the server.
Front PCIe slots: The use of the security bezel is not supported when the server has front PCIe slots.The dimensions of the security bezel are:

• Width: 437 mm (17.2 in.)
• Height: 43 mm (1.3 in.)
• Width: 23 mm (0.9 in.)

The following table lists the physical security options for the SR635 V3.
Table 65. Physical security features

Tip: The only difference between security bezels 4XH7A09890 and 4XH7A90346 is the Lenovo logo: On 4XH7A09890, the logo is made from plastic; on 4XH7A90346, the logo is made from aluminum alloy.
Platform Firmware Resiliency – Lenovo ThinkShield
Lenovo’s ThinkShield Security is a transparent and comprehensive approach to security that extends to all dimensions of our data center products: from development, to supply chain, and through the entire product lifecycle.
The ThinkSystem SR635 V3 includes Platform Firmware Resiliency (PFR) hardware Root of Trust (RoT) which enables the system to be NIST SP800-193 compliant. This offering further enhances key platform subsystem protections against unauthorized firmware updates and corruption, to restore firmware to an integral state, and to closely monitor firmware for possible compromise from cyber-attacks.
PFR operates upon the following server components:

• UEFI image – the low-level server firmware that connects the operating system to the server hardware
• XCC image – the management “engine” software that controls and reports on the server status separate from the server operating system
• FPGA image – the code that runs the server’s lowest level hardware controller on the motherboard

The Lenovo Platform Root of Trust Hardware performs the following three main functions:

• Detection – Measures the firmware and updates for authenticity
• Recovery – Recovers a corrupted image to a known-safe image
• Protection – Monitors the system to ensure the known-good firmware is not maliciously written

These enhanced protection capabilities are implemented using a dedicated, discrete security processor whose implementation has been rigorously validated by leading third-party security firms. Security evaluation results and design details are available for customer review – providing unprecedented transparency and assurance.
The SR635 V3 includes support for Secure Boot, a UEFI firmware security feature developed by the UEFI Consortium that ensures only immutable and signed software are loaded during the boot time. The use of Secure Boot helps prevent malicious code from being loaded and helps prevent attacks, such as the installation of rootkits. Lenovo offers the capability to enable secure boot in the factory, to ensure end-to-end protection. Alternatively, Secure Boot can be left disabled in the factory, allowing the customer to enable it themselves at a later point, if desired.
The following table lists the relevant feature code(s).
Table 66. Secure Boot options

with Secure Boot enabled.
CTO only| BPKR| TPM 2.0| Configure the system without Secure Boot enabled. Customers can enable Secure Boot later if desired.

Tip : If Secure Boot is not enabled in the factory, it can be enabled later by the customer. However once Secure Boot is enabled, it cannot be disabled.

Security standards

The SR635 V3 supports the following security standards and capabilities:

• Industry Standard Security Capabilities

  • AMD CPU Enablement
    ◼ AES-NI (Advanced Encryption Standard New Instructions)
    ◼  GMET (Guest Mode Execute Trap)
    ◼  Hardware-based side channel attack resilience enhancements
    ◼  NX (No eXecute)
    ◼  PSB (Platform Secure Boot)
    ◼  Shadow Stack
    ◼  SEV (Secure Encrypted Virtualization)
    ◼  SEV-ES (Encrypted State register encryption)
    ◼  SEV-SNP (Secure Nested Paging)
    ◼  SVM (Secure Virtual Machine)
    ◼  SME (Secure Memory Encryption)
    ◼  UMIP (User Mode Instruction Prevention)

  • Microsoft Windows Security Enablement
    Credential Guard
    Device Guard
    Host Guardian Service

  • TCG (Trusted Computing Group) TPM (Trusted Platform Module) 2.0

  • UEFI (Unified Extensible Firmware Interface) Forum Secure Boot

• Hardware Root of Trust and Security

  • Independent security subsystem providing platform-wide NIST SP800-193 compliant Platform Firmware Resilience (PFR)
  • Host domain RoT supplemented by AMD Platform Secure Boot (PSB)
  • Management domain RoT supplemented by the Secure Boot features of XCC

• Platform Security

  • Boot and run-time firmware integrity monitoring with rollback to known-good firmware (e.g., “self-healing”)
  • Non-volatile storage bus security monitoring and filtering
  • Resilient firmware implementation, such as to detect and defeat unauthorized flash writes or SMM (System Management Mode) memory incursions
  • Patented IPMI KCS channel privileged access authorization (USPTO Patent# 11,256,810)
  • Host and management domain authorization, including integration with CyberArk for enterprise password management
  • KMIP (Key Management Interoperability Protocol) compliant, including support for IBM SKLM and Thales KeySecure
  • Reduced “out of box” attack surface
  • Configurable network services
  • FIPS 140-3 (in progress) validated cryptography for XCC
  • CNSA Suite 1.0 Quantum-resistant cryptography for XCC
  • Lenovo System Guard

For more information on platform security, see the paper “How to Harden the Security of your ThinkSystem Server and Management Applications” available from https://lenovopress.com/lp1260how-to-harden-the-security-of-your- thinksystem-server.

• Standards Compliance and/or Support
  • NIST SP800-131A rev 2 “Transitioning the Use of Cryptographic Algorithms and Key Lengths”
  • NIST SP800-147B “BIOS Protection Guidelines for Servers”
  • NIST SP800-193 “Platform Firmware Resiliency Guidelines”
  • ISO/IEC 11889 “Trusted Platform Module Library”
  • Common Criteria TCG Protection Profile for “PC Client Specific TPM 2.0”
  • European Union Commission Regulation 2019/424 (“ErP Lot 9”) “Ecodesign Requirements for
  • Servers and Data Storage Products” Secure Data Deletion
  • Optional FIPS 140-2 validated Self-Encrypting Disks (SEDs) with external KMIP-based key management
• Product and Supply Chain Security
  • Suppliers validated through Lenovo’s Trusted Supplier Program
  • Developed in accordance with Lenovo’s Secure Development Lifecycle (LSDL)
  • Continuous firmware security validation through automated testing, including static code analysis, dynamic network and web vulnerability testing, software composition analysis, and subsystem-specific testing, such as UEFI security configuration validation
  • Ongoing security reviews by US-based security experts, with attestation letters available from our third-party security partners
  • Digitally signed firmware, stored and built on US-based infrastructure and signed on US-based
  • Hardware Security Modules (HSMs)
  • TAA (Trade Agreements Act) compliant manufacturing, by default in Mexico for North American markets with additional US and EU manufacturing options
  • US 2019 NDAA (National Defense Authorization Act) Section 889 compliant

Rack installation

The following table lists the rack installation options that are available for the SR635 V3.
Table 67. Rack installation options

Rail slides
4M17A13564| BK7W| ThinkSystem Toolless Friction Rail v2
4M17A11754| B8LA| ThinkSystem Toolless Slide Rail Kit v2
4M17A11758| B8LC| ThinkSystem Toolless Slide Rail Kit v2 with 1U CMA
Cable Management Arm
7M27A05699| B136| ThinkSystem 1U CMA Upgrade Kit for Toolless Slide Rail

The following table summarizes the rail kit features and specifications.
Table 68. Rail kit features and specifications summary

Option name| ThinkSystem Toolless Friction Rail v2| ThinkSystem Toolless Slide Rail Kit v2| ThinkSystem Toolless Slide Rail Kit v2 with 1U CMA
---|---|---|---
Option part number| 4M17A13564| 4M17A11754| 4M17A11758
Rail type| Half-out slide rail (friction)| Full-out slide rail (ball bearing)| Full-out slide rail (ball bearing)
Toolless installation| Yes| Yes| Yes
CMA support| No| Optional, 7M27A05699*| Included
Supported rack type| Four-post IBM and Lenovo standard rack, complying with the IEC standard| Four-post IBM and Lenovo standard rack, complying with the IEC standard| Four-post IBM and Lenovo standard rack, complying with the IEC standard
In-rack server maintenance| No| Yes| Yes
1U PDU support| Yes| Yes| Yes
0U PDU support| Yes| Limited support| Limited support
Supported mounting holes| Square or round| Square or round| Square or round
Thickness of mounting flanges| 2.0-3.3 mm (0.08-0.13 inches)| 2.0-3.3 mm (0.08-0.13 inches)| 2.0-3.3 mm (0.08-0.13 inches)
Supported distance between front and rear mounting flanges ‡| 610-864 mm (24-34 inches)| 610-813 mm (24-32 inches)| 610-813 mm (24-32 inches)
Rail length†| 751 mm (29.6 inches)| 740 mm (29.1 inches)| 820 mm (32.3 inches)

• CMA mounting brackets are not preinstalled on the rail. The CMA mounting brackets are contained in the CMA option kit package and you will need to install the CMA mounting brackets first. For detailed instructions, refer to the documentation that comes with the CMA option kit.
  ** If you want to install the rails and a 0U PDU into the same rack, the rack must meet the height and depth requirements as described in ThinkSystem Rail Support Matrix.
  ‡ For best performance, it is recommended that you install the rails to the racks with a 719-mm distance (28.31-inch, Lenovo rack default distance) between the front and rear mounting flanges.
  † Measured when mounted on the rack, from the front surface of the front mounting flange to the rear most point of the rail. Rail is in closed position.

Operating system support

The SR635 V3 supports the following operating systems:

• Microsoft Windows 10 Professional (x64)
• Microsoft Windows 11 Professional (x64)
• Microsoft Windows Server 2019
• Microsoft Windows Server 2022
• Red Hat Enterprise Linux 8.6
• Red Hat Enterprise Linux 8.7
• Red Hat Enterprise Linux 8.8
• Red Hat Enterprise Linux 8.9
• Red Hat Enterprise Linux 8.10
• Red Hat Enterprise Linux 9.0
• Red Hat Enterprise Linux 9.1
• Red Hat Enterprise Linux 9.2
• Red Hat Enterprise Linux 9.3
• Red Hat Enterprise Linux 9.4
• SUSE Linux Enterprise Server 15 SP4
• SUSE Linux Enterprise Server 15 SP5
• SUSE Linux Enterprise Server 15 Xen SP4
• SUSE Linux Enterprise Server 15 Xen SP5
• Ubuntu 20.04 LTS 64-bit
• Ubuntu 22.04 LTS 64-bit
• VMware ESXi 7.0 U3
• VMware ESXi 8.0
• VMware ESXi 8.0 U1
• VMware ESXi 8.0 U2

For a complete list of supported, certified and tested operating systems, plus additional details and links to relevant web sites, see the Operating System Interoperability Guide:
https://lenovopress.lenovo.com/osig#servers=sr635-v3-7d9g&support=all
For configure-to-order configurations, the server can be preloaded with VMware ESXi installed on M.2 cards.
Ordering information is listed in the following table.
Table 69. VMware ESXi preload

Configuration rule:

• An ESXi preload cannot be selected if the configuration includes an NVIDIA GPU (ESXi preload cannot include the NVIDIA driver)

You can download supported VMware vSphere hypervisor images from the following web page and load it on the M.2 drives or 7mm drives using the instructions provided:
https://vmware.lenovo.com/content/custom_iso/
Windows 10 and Windows 11

The SR635 V3 can now run Windows 10 and Windows 11, however only a subset of adapters and drives can be installed. For ease of configuration, additional Base CTO models 7D9GCTO2WW and 7D9HCTO2WW have been created to assist building a configuration that can be used with the client operating systems. See the Models section for details.
The XClarity management toolset is supported with Windows 10 and Windows 11.
Windows client license: A Windows client license for the system cannot be ordered from Lenovo nor can the OS be preloaded on the system in the factory. For the Windows license and for preloads, please contact your Lenovo business partner. A Windows Pro license is required as a qualifying base OS license in order to use a client Volume License offering.
See the part number tables in the following sections to see which adapters are supported with Windows 10 and Windows 11:

• Controllers for internal storage
• M.2 adapters
• Network adapters
• GPU adapters

GPU recommended: Lenovo recommends that if you plan to install Windows 10 or 11 on this server to run graphics-intensive applications, then you should selected a dedicated graphics adapter (GPU).
The following components are not supported:

• Fibre Channel adapters
• InfiniBand and VPI adapters
• External storage adapters
• Flash storage adapters

Physical and electrical specifications
The SR635 V3 has the following overall physical dimensions, excluding components that extend outside the standard chassis, such as EIA flanges, front security bezel (if any), and power supply handles:

• Width: 440 mm (17.3 inches)
• Height: 43 mm (1.7 inches)
• Depth: 773 mm (30.4 inches)

The following table lists the detailed dimensions. See the figure below for the definition of each dimension.
Table 70. Detailed dimensions

port surface
738 mm| Zb = Depth, from the rack flange mating surface to the rearmost feature of the chassis body
754 mm (≤1100W PSU)
782 mm (1800W PSU)| Zc = Depth, from the rack flange mating surface to the rearmost feature such as power supply handle
36 mm| Zd = Depth, from the forwardmost feature on front of EIA flange to the rack flange mating surface
47 mm| Ze = Depth, from the front of security bezel (if applicable) or forwardmost feature to the rack flange mating surface

The shipping dimensions (cardboard packaging) of the SR635 V3 are as follows:

• Width: 587 mm (23.1 inches)
• Height: 225 mm (8.9 inches)
• Depth: 998 mm (39.3 inches)

The server has the following weight:

• Maximum weight: 20.2 kg (44.6 lb)

The server has the following electrical specifications for AC input power supplies:

• Input voltage:
  • 100 to 127 (nominal) Vac, 50 Hz or 60 Hz
  • 200 to 240 (nominal) Vac, 50 Hz or 60 Hz
  • 180 to 300 Vdc (China only)
• Inlet current: see the following table.

Table 71. Maximum inlet current

Part number| Description| 100V AC| 200V AC| 220V AC| 240V DC
---|---|---|---|---|---
AC input power – 80 PLUS Titanium efficiency
4P57A82019| ThinkSystem 750W 230V Titanium Hot-Swap Gen2 Power Supply v3| No support| 4A| 3.6A| 3.3A
4P57A72666| ThinkSystem 1100W 230V Titanium Hot-Swap Gen2 Power Supply| No support| 5.9A| 5.3A| 5A
4P57A78359| ThinkSystem 1800W 230V Titanium Hot-Swap Gen2 Power Supply| No support| 9.7A| 8.7A| 8.3A
AC input power – 80 PLUS Platinum efficiency
4P57A72670| ThinkSystem 750W 230V/115V Platinum Hot-Swap Gen2 Power Supply v3| 8.4A| 4.1A| 3.69A| 3.5A
4P57A72671| ThinkSystem 1100W 230V/115V Platinum Hot-Swap Gen2 Power Supply v3| 12A| 6A| 5.4A| 5.1A
4P57A26294| ThinkSystem 1800W 230V Platinum Hot-Swap Gen2 Power Supply v2| No support| 10A| 9.1A| 9A

Electrical specifications for DC input power supply:

• Input voltage: -48 to -60 Vdc
• Inlet current (1100W power supply): 26 A

Operating environment

The SR635 V3 server complies with ASHRAE Class A2 specifications with most configurations, and depending on the hardware configuration, also complies with ASHRAE Class A3 and Class A4 specifications. System performance may be impacted when operating temperature is outside ASHRAE A2 specification.
Depending on the hardware configuration, the SR635 V3 server also complies with ASHRAE Class H1 specification. System performance may be impacted when operating temperature is outside ASHRAE H1 specification.
Topics in this section:

• Ambient temperature requirements
• Temperature and humidity
• Heat output
• Acoustical noise emissions
• Shock and vibration
• Particulate contamination

Ambient temperature requirements

The restrictions to ASHRAE support are as follows:

• The ambient temperature must be limited to 45°C or lower (TDP ＜ 240W) if the server meets the following conditions:
  • Installed with any TruDDR5 memory DIMM (64 GB or below)
  • Without 2.5″ NVMe, NVMe M.2 or NVMe AIC drives
  • Without rear drives or 7mm drives
  • Without GPU adapters
  • Without any PCIe network interface cards (NICs) at a rate ≥ 25 GB
  • Without any parts with AOC and at a rate ≥ 25 GB
  • Without closed loop heat sink
• The ambient temperature must be limited to 40°C or lower (TDP ＜300 W) if the server meets the following conditions:
  • Installed with any TruDDR5 memory DIMM (64 GB or below)
  • Without 2.5″ NVMe, NVMe M.2 or NVMe AIC drives
  • Without rear drives or 7mm drives
  • Without GPU adapters
  • Without any PCIe network interface cards (NICs) at a rate ≥ 25 GB
  • Without any parts with AOC and at a rate ≥ 25 GB
  • Without closed loop heat sink
• The ambient temperature must be limited to 35°C or lower (320 W ≤TDP ≤ 400 W) if the server has any of the following components:
  • TruDDR5 memory 128 GB DIMM
  • ThinkSystem 256GB TruDDR5 4800MHz (8Rx4) 3DS RDIMM-A v2
  • NVMe, NVMe M.2 or NVMe AIC drives
  • Broadcom 57416 10GBASE-T 2-port OCP
  • Broadcom 57454 10GBASE-T 4-port OCP
  • PCIe network interface cards (NICs) at a rate of 25 GB
  • Parts with AOC and at a rate of 25 GB
  • GPU adapters
• The ambient temperature must be limited to 30°C or lower if the server has any of the following components:
  • Rear drives
  • EDSFF drives
  • Parts with AOC and at a rate > 25 GB
  • PCIe network interface cards (NICs) at a rate > 25 GB
  • ThinkSystem 256GB TruDDR5 4800MHz (8Rx4) 3DS RDIMM-A v1

Server shutdown: When the ambient temperature is greater than the supported max temperature (ASHARE A4 45°C), the server will shut down. The server will not power on again until the ambient temperature falls within the supported temperature range.
For additional information, see the Environmental specifications and Thermal rules sections in the product documentation:
https://pubs.lenovo.com/sr635-v3/server_specifications_environmental
https://pubs.lenovo.com/sr635-v3/thermal_rules

Temperature and humidity
The server is supported in the following environment:

• Air temperature:

  • Operating:
    ◼ ASHRAE Class A2: 10°C to 35°C (50°F to 95°F); the maximum ambient temperature decreases by 1°C for every 300 m (984 ft) increase in altitude above 900 m (2,953 ft).
    ◼ ASHRAE Class A3: 5°C to 40°C (41°F to 104°F); the maximum ambient temperature decreases by 1°C for every 175 m (574 ft) increase in altitude above 900 m (2,953 ft).
    ◼ ASHRAE Class A4: 5°C to 45°C (41°F to 113°F); the maximum ambient temperature decreases by 1°C for every 125 m (410 ft) increase in altitude above 900 m (2,953 ft).
    ◼ ASHRAE Class H1: 5 °C to 25 °C (41 °F to 77 °F); Decrease the maximum ambient temperature by 1°C for every 500 m (1640 ft) increase in altitude above 900 m (2,953 ft).

  • Server off: 5°C to 45°C (41°F to 113°F)

  • Shipment/storage: -40°C to 60°C (-40°F to 140°F)

• Maximum altitude: 3,050 m (10,000 ft)

• Relative Humidity (non-condensing):

  • Operating
    ◼ ASHRAE Class A2: 8% to 80%; maximum dew point: 21°C (70°F)
    ◼ ASHRAE Class A3: 8% to 85%; maximum dew point: 24°C (75°F)
    ◼ ASHRAE Class A4: 8% to 90%; maximum dew point: 24°C (75°F)
    ◼ ASHRAE Class H1: 8% to 80%; Maximum dew point: 17°C (63°F)

  • Shipment/storage: 8% to 90%

Heat output
The server generates the following heat:

• Heat/thermal output:
  Minimum configuration: 2859 BTU/hr, 837 W
  Maximum configuration: 8164 BTU/hr, 2393 W

Acoustical noise emissions
The SR635 V3 has the following acoustic noise emissions declaration:

• Sound power level (LWAd ):
  • Idling: 6.7 Bel (Typical), 6.7 Bel (GPU rich), 7.4 Bel (Storage rich)
  • Operating: 8.4 Bel (Typical), 8.3 Bel (GPU rich), 7.9 Bel (Storage rich)
• Sound pressure level (LpAm ):
  • Idling: 52.3 dBA (Typical), 52.3 dBA (GPU rich), 59.9 dBA (Storage rich)
  • Operating: 68.7 dBA (Typical), 67.7 dBA (GPU rich), 64.1 dBA (Storage rich)

Notes:

• These sound levels were measured in controlled acoustical environments according to procedures specified by ISO7779 and are reported in accordance with ISO 9296.
• The declared acoustic sound levels are based on the following configurations, which may change depending on configuration/conditions：
  • Typical: 1x 300W CPU, 12x 64GB RDIMM, 10x SAS HDD, 440-16i CFF raid, Broadcom 5719 1GbE RJ45 4-port OCP Ethernet Adapter, 2x 1100W PSU
  • GPU rich: 1x 300W CPU, 12x 64GB RDIMM, 10x SAS HDD, 440-16i CFF raid, Broadcom 5719 1GbE RJ45 4-port OCP Ethernet Adapter, 1x A2 GPU, 2x 1100W PSU
  • Storage rich: 1x 240W CPU, 12x 64GB RDIMM, 12x SAS HDD, 440-16i CFF raid, Broadcom 5719 1GbE RJ45 4-port OCP Ethernet Adapter, 2x 750W PSU

Government regulations (such as those prescribed by OSHA or European Community Directives) may govern noise level exposure in the workplace and may apply to you and your server installation. The actual sound pressure levels in your installation depend upon a variety of factors, including the number of racks in the installation; the size, materials, and configuration of the room; the noise levels from other equipment; the room ambient temperature, and employee’s location in relation to the equipment. Further, compliance with such government regulations depends on a variety of additional factors, including the duration of employees’ exposure and whether employees wear hearing protection. Lenovo recommends that you consult with qualified experts in this field to determine whether you are in compliance with the applicable regulations.

Shock and vibration
The server has the following vibration and shock limits:

• Vibration:
  • Operating: 0.21 G rms at 5 Hz to 500 Hz for 15 minutes across 3 axes
  • Non-operating: 1.04 G rms at 2 Hz to 200 Hz for 15 minutes across 6 surfaces
• Shock:
  • Operating: 15 G for 3 milliseconds in each direction (positive and negative X, Y, and Z axes)
  • Non-operating:
    ◼ 12 kg – 22 kg: 50 G for 152 in./sec velocity change across 6 surfaces

Particulate contamination

Airborne particulates (including metal flakes or particles) and reactive gases acting alone or in combination with other environmental factors such as humidity or temperature might damage the system that might cause the system to malfunction or stop working altogether.
The following specifications indicate the limits of particulates that the system can tolerate:

• Reactive gases:
  • The copper reactivity level shall be less than 200 Angstroms per month (Å/month)
  • The silver reactivity level shall be less than 200 Å/month
• Airborne particulates:
  • The room air should be continuously filtered with MERV 8 filters.
  • Air entering a data center should be filtered with MERV 11 or preferably MERV 13 filters.
  • The deliquescent relative humidity of the particulate contamination should be more than 60% RH
  • Environment must be free of zinc whiskers

For additional information, see the Specifications section of the documentation for the server, available from the Lenovo Documents site, https://pubs.lenovo.com/

Warranty and Support

The SR635 V3 has a 3-year or 1-year warranty based on the machine type of the system:

• 7D9G – 3 year warranty
• 7D9H – 1 year warranty

The standard warranty terms are customer-replaceable unit (CRU) and onsite (for field-replaceable units FRUs only) with standard call center support during normal business hours and 9×5 Next Business Day Parts Delivered.
Lenovo’s additional support services provide a sophisticated, unified support structure for your data center, with an experience consistently ranked number one in customer satisfaction worldwide. Available offerings include:

• Premier Support
  Premier Support provides a Lenovo-owned customer experience and delivers direct access to technicians skilled in hardware, software, and advanced troubleshooting, in addition to the following:

  • Direct technician-to-technician access through a dedicated phone line
  • 24x7x365 remote support
  • Single point of contact service
  • End to end case management
  • Third-party collaborative software support
  • Online case tools and live chat support
  • On-demand remote system analysis

• Warranty Upgrade (Preconfigured Support)
  Services are available to meet the on-site response time targets that match the criticality of your systems.

  • 3, 4, or 5 years of service coverage
  • 1-year or 2-year post-warranty extensions
  • Foundation Service: 9×5 service coverage with next business day onsite response. YourDrive YourData is an optional extra (see below).
  • Essential Service: 24×7 service coverage with 4-hour onsite response or 24-hour committed repair (available only in select markets). Bundled with YourDrive YourData.
  • Advanced Service: 24×7 service coverage with 2-hour onsite response or 6-hour committed repair (available only in select markets). Bundled with YourDrive YourData.

• Managed Services
  Lenovo Managed Services provides continuous 24×7 remote monitoring (plus 24×7 call center availability) and proactive management of your data center using state-of-the-art tools, systems, and practices by a team of highly skilled and experienced Lenovo services professionals.
  Quarterly reviews check error logs, verify firmware & OS device driver levels, and software as needed. We’ll also maintain records of latest patches, critical updates, and firmware levels, to ensure you systems are providing business value through optimized performance.

• Technical Account Management (TAM)
  A Lenovo Technical Account Manager helps you optimize the operation of your data center based on a deep understanding of your business. You gain direct access to your Lenovo TAM, who serves as your single point of contact to expedite service requests, provide status updates, and furnish reports to track incidents over time. In addition, your TAM will help proactively make service recommendations and manage your service relationship with Lenovo to make certain your needs are met.

• Enterprise Server Software Support
  Enterprise Software Support is an additional support service providing customers with software support on Microsoft, Red Hat, SUSE, and VMware applications and systems. Around the clock availability for critical problems plus unlimited calls and incidents helps customers address challenges fast, without incremental costs. Support staff can answer troubleshooting and diagnostic questions, address product comparability and interoperability issues, isolate causes of problems, report defects to software vendors, and more.

• YourDrive YourData
  Lenovo’s YourDrive YourData is a multi-drive retention offering that ensures your data is always under your control, regardless of the number of drives that are installed in your Lenovo server. In the unlikely event of a drive failure, you retain possession of your drive while Lenovo replaces the failed drive part. Your data stays safely on your premises, in your hands. The YourDrive YourData service can be purchased in convenient bundles and is optional with Foundation Service. It is bundled with Essential Service and Advanced Service.

• Health Check
  Having a trusted partner who can perform regular and detailed health checks is central to maintaining efficiency and ensuring that your systems and business are always running at their best. Health Check supports Lenovo-branded server, storage, and  networking devices, as well as select Lenovosupported products from other vendors that are sold by Lenovo or a Lenovo-Authorized Reseller.

Examples of region-specific warranty terms are second or longer business day parts delivery or parts-only base warranty.
If warranty terms and conditions include onsite labor for repair or replacement of parts, Lenovo will dispatch a service technician to the customer site to perform the replacement. Onsite labor under base warranty is limited to labor for replacement of parts that have been determined to be field-replaceable units (FRUs).
Parts that are determined to be customer-replaceable units (CRUs) do not include onsite labor under base warranty.
If warranty terms include parts-only base warranty, Lenovo is responsible for delivering only replacement parts that are under base warranty (including FRUs) that will be sent to a requested location for self-service.
Parts-only service does not include a service technician being dispatched onsite. Parts must be changed at customer’s own cost and labor and defective parts must be returned following the instructions supplied with the spare parts.
Lenovo Service offerings are region-specific. Not all preconfigured support and upgrade options are available in every region. For information about Lenovo service upgrade offerings that are available in your region, refer to the following resources:

• Service part numbers in Lenovo Data Center Solution Configurator (DCSC):
  http://dcsc.lenovo.com/#/services

• Lenovo Services Availability Locator
  http://lenovolocator.com/

For service definitions, region-specific details, and service limitations, please refer to the following documents:

• Lenovo Statement of Limited Warranty for Infrastructure Solutions Group (ISG) Servers and System Storage
  http://pcsupport.lenovo.com/us/en/solutions/ht503310

• Lenovo Data Center Services Agreement
  http://support.lenovo.com/us/en/solutions/ht116628

Services

Lenovo Services is a dedicated partner to your success. Our goal is to reduce your capital outlays, mitigate your IT risks, and accelerate your time to productivity.
Note: Some service options may not be available in all markets or regions. For more information, go to https://www.lenovo.com/services. For information about Lenovo service upgrade offerings that are available in your region, contact your local Lenovo sales representative or business partner.
Here’s a more in-depth look at what we can do for you:

• Asset Recovery Services
  Asset Recovery Services (ARS) helps customers recover the maximum value from their end-of-life equipment in a cost-effective and secure way. On top of simplifying the transition from old to new equipment, ARS mitigates environmental and data security risks associated with data center equipment disposal. Lenovo ARS is a cash-back solution for equipment based on its remaining market value, yielding maximum value from aging assets and lowering total cost of ownership for your customers. For more information, see the ARS page, https://lenovopress.com/lp1266-reduce-ewaste-and-grow-your-bottom-line- with-lenovo-ars.

• Assessment Services
  An Assessment helps solve your IT challenges through an onsite, multi-day session with a Lenovo technology expert. We perform a tools-based assessment which provides a comprehensive and thorough review of a company’s environment and technology systems. In addition to the technology based functional requirements, the consultant also discusses and records the non-functional business requirements, challenges, and constraints. Assessments help organizations like yours, no matter how large or small, get a better return on your IT investment and overcome challenges in the ever-changing technology landscape.

• Design Services
  Professional Services consultants perform infrastructure design and implementation planning to support your strategy. The high-level architectures provided by the assessment service are turned into low level designs and wiring diagrams, which are reviewed and approved prior to implementation.
  The implementation plan will demonstrate an outcome-based proposal to provide business capabilities through infrastructure with a risk-mitigated project plan.

• Basic Hardware Installation
  Lenovo experts can seamlessly manage the physical installation of your server, storage, or networking hardware. Working at a time convenient for you (business hours or off shift), the technician will unpack and inspect the systems on your site, install options, mount in a rack cabinet, connect to power and network, check and update firmware to the latest levels, verify operation, and dispose of the packaging, allowing your team to focus on other priorities.

• Deployment Services
  When investing in new IT infrastructures, you need to ensure your business will see quick time to value with little to no disruption. Lenovo deployments are designed by development and engineering teams who know our Products & Solutions better than anyone else, and our technicians own the process from delivery to completion. Lenovo will conduct remote preparation and planning, configure & integrate systems, validate systems, verify and update appliance firmware, train on administrative tasks, and provide post-deployment documentation. Customer’s IT teams leverage our skills to enable IT staff to transform with higher level roles and tasks.

• Integration, Migration, and Expansion Services
  Move existing physical & virtual workloads easily, or determine technical requirements to support increased workloads while maximizing performance. Includes tuning, validation, and documenting ongoing run processes. Leverage migration assessment planning documents to perform necessary migrations.

Regulatory compliance

The SR635 V3 conforms to the following standards:

• ANSI/UL 62368-1
• IEC 62368-1 (CB Certificate and CB Test Report)
• CSA C22.2 No. 62368-1
• Mexico NOM-019
• India BIS 13252 (Part 1)
• Germany GS
• TUV-GS (EN62368-1, and EK1-ITB2000)
• Ukraine UkrCEPRO
• Morocco CMIM Certification (CM)
• Russia, Belorussia and Kazakhstan, TP EAC 037/2016 (for RoHS)
• Russia, Belorussia and Kazakhstan, EAC: TP TC 004/2011 (for Safety); TP TC 020/2011 (for EMC)
• CE, UKCA Mark (EN55032 Class A, EN62368-1, EN55024, EN55035, EN61000-3-2, EN61000-3-3, (EU) 2019/424, and EN IEC 63000 (RoHS))
• FCC – Verified to comply with Part 15 of the FCC Rules, Class A
• Canada ICES-003, issue 7, Class A
• CISPR 32, Class A, CISPR 35
• Korea KN32, Class A, KN35
• Japan VCCI, Class A
• Taiwan BSMI CNS15936, Class A; CNS15598-1; Section 5 of CNS15663
• Australia/New Zealand AS/NZS CISPR 32, Class A; AS/NZS 62368.1
• UL Green Guard, UL2819
• Energy Star 4.0
• EPEAT (NSF/ ANSI 426) Bronze
• Japanese Energy-Saving Act
• EU2019/424 Energy Related Product (ErP Lot9)
• China CCC certificate, GB17625.1; GB4943.1; GB/T9254
• China CECP certificate, CQC3135
• China CELP certificate, HJ 2507-2011

External drive enclosures

The server supports attachment to external drive enclosures using a RAID controller with external ports or a SAS host bus adapter. Adapters supported by the server are listed in the SAS adapters for external storage section.
Note: Information provided in this section is for ordering reference purposes only. For the operating system and adapter support details, refer to the interoperability matrix for a particular storage enclosure that can be found on the Lenovo Data Center Support web site: http://datacentersupport.lenovo.com
Table 72. External drive enclosures

LFF drive bays)
4587HC2| Lenovo Storage D1224 Disk Expansion Enclosure (2U enclosure with 24x SFF drive bays)
6413HC1| Lenovo Storage D3284 High Density Expansion Enclosure (5U enclosure with 84x LFF drive bays)
7DAHCTO1WW| Lenovo ThinkSystem D4390 Direct Attached Storage (4U enclosure with 90x LFF drive bays)

For details about supported drives, adapters, and cables, see the following Lenovo Press Product Guides:

• Lenovo Storage D1212 and D1224
  http://lenovopress.lenovo.com/lp0512

• Lenovo Storage D3284
  http://lenovopress.lenovo.com/lp0513

• Lenovo ThinkSystem D4390
  https://lenovopress.lenovo.com/lp1681

External storage systems

Lenovo offers the ThinkSystem DE Series and ThinkSystem DM Series external storage systems for highperformance storage. See the DE Series and DM Series product guides for specific controller models, expansion enclosures and configuration options:

• ThinkSystem DE Series Storage
  https://lenovopress.com/storage/thinksystem/de-series#rt=product-guide

• ThinkSystem DM Series Storage
  https://lenovopress.com/storage/thinksystem/dm-series#rt=product-guide

• ThinkSystem DG Series Storage
  https://lenovopress.com/storage/thinksystem/dg-series#rt=product-guide

External backup units

The following table lists the external backup options that are offered by Lenovo.
Table 73. External backup options

External RDX USB drives
4T27A10725| ThinkSystem RDX External USB 3.0 Dock
External SAS tape backup drives
6160S7E| IBM TS2270 Tape Drive Model H7S
6160S8E| IBM TS2280 Tape Drive Model H8S
6160S9E| IBM TS2290 Tape Drive Model H9S
External SAS tape backup autoloaders
6171S7R| IBM TS2900 Tape Autoloader w/LTO7 HH SAS
6171S8R| IBM TS2900 Tape Autoloader w/LTO8 HH SAS
6171S9R| IBM TS2900 Tape Autoloader w/LTO9 HH SAS
External tape backup libraries
6741A1F| IBM TS4300 3U Tape Library-Base Unit
6741A3F| IBM TS4300 3U Tape Library-Expansion Unit
Full High 8 Gb Fibre Channel for TS4300
01KP938| LTO 7 FH Fibre Channel Drive
01KP954| LTO 8 FH Fibre Channel Drive
02JH837| LTO 9 FH Fibre Channel Drive
Half High 8 Gb Fibre Channel for TS4300
01KP936| LTO 7 HH Fibre Channel Drive
01KP952| LTO 8 HH Fibre Channel Drive
02JH835| LTO 9 HH Fibre Channel Drive
Half High 6 Gb SAS for TS4300
01KP937| LTO 7 HH SAS Drive
01KP953| LTO 8 HH SAS Drive
02JH836| LTO 9 HH SAS Drive

For more information, see the list of Product Guides in the Backup units category:
https://lenovopress.com/servers/options/backup
Fibre Channel SAN switches
Lenovo offers the ThinkSystem DB Series of Fibre Channel SAN switches for high-performance storage expansion. See the DB Series product guides for models and configuration options:

• ThinkSystem DB Series SAN Switches:
  https://lenovopress.com/storage/switches/rack#rt=product-guide

Uninterruptible power supply units

The following table lists the uninterruptible power supply (UPS) units that are offered by Lenovo.
Table 74. Uninterruptible power supply units

10A, 1x C19 16A outlets)
55943LT†| ThinkSystem RT3kVA 2U Long Backup UPS (200-230VAC) (2x C13 10A, 2x GB 10A, 1x C19 16A outlets)
55946KT†| ThinkSystem RT6kVA 5U UPS (200-230VAC) (2x C13 10A outlets, 1x Terminal Block output)
5594XKT†| ThinkSystem RT10kVA 5U UPS (200-230VAC) (2x C13 10A outlets, 1x Terminal Block output)

† Only available in China and the Asia Pacific market.
For more information, see the list of Product Guides in the UPS category: https://lenovopress.com/servers/options/ups

Power distribution units
The following table lists the power distribution units (PDUs) that are offered by Lenovo.
Table 75. Power distribution units

Part number| Feature code| Description| ANZ| ASEAN| Brazil| EET| MEA| RUCIS| WE| HTK| INDIA| JAPAN| LA| NA| PRC
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---
0U Basic PDUs
00YJ776| ATZY| 0U 36 C13/6 C19 24A 1 Phase PDU| N| Y| Y| N| N| N| N| N| N| Y| Y| Y| N
0U Switched and Monitored PDUs
00YJ781| AU03| 0U 20 C13/4 C19 Switched and Monitored 24A 1 Phase PDU| N| N| Y| N| Y| N| Y| N| N| Y| Y| Y| N
1U Switched and Monitored PDUs
4PU7A90808| C0D4| 1U 18 C19/C13 Switched and monitored 48A 3P WYE PDU V2 ETL| Y| Y| Y| Y| Y| Y| Y| Y| Y| Y| Y| Y| Y
4PU7A81117| BNDV| 1U 18 C19/C13 switched and monitored 48A 3P WYE PDU – ETL| N| N| N| N| N| N| N| N| N| N| N| Y| N
4PU7A90809| C0DE| 1U 18 C19/C13 Switched and monitored 48A 3P WYE PDU V2 CE| N| N| N| N| N| Y| Y| N| N| N| N| N| N
4PU7A81118| BNDW| 1U 18 C19/C13 switched and monitored 48A 3P WYE PDU – CE| Y| Y| Y| Y| Y| Y| Y| Y| Y| N| Y| N| Y
4PU7A90810| C0DD| 1U 18 C19/C13 Switched and monitored 80A 3P Delta PDU V2| Y| Y| Y| Y| Y| Y| Y| Y| Y| Y| Y| Y| Y
4PU7A77467| BLC4| 1U 18 C19/C13 Switched and Monitored 80A 3P Delta PDU| N| N| N| N| N| N| N| N| N| Y| N| Y| N
4PU7A90811| C0DC| 1U 12 C19/C13 Switched and monitored 32A 3P WYE PDU V2| N| N| N| N| N| Y| Y| N| N| N| N| N| N
4PU7A77468| BLC5| 1U 12 C19/C13 switched and monitored 32A 3P WYE PDU| Y| Y| Y| Y| Y| Y| Y| Y| Y| N| Y| Y| Y
4PU7A90812| C0DB| 1U 12 C19/C13 Switched and monitored 60A 3P Delta PDU V2| N| N| N| N| N| N| N| N| N| Y| N| N| N
4PU7A77469| BLC6| 1U 12 C19/C13 switched and monitored 60A 3P Delta PDU| N| N| N| N| N| N| N| N| N| N| N| Y| N
1U Ultra Density Enterprise PDUs (9x IEC 320 C13 + 3x IEC 320 C19 outlets)
71763NU| 6051| Ultra Density Enterprise C19/C13 PDU 60A/208V/3PH| N| N| Y| N| N| N| N| N| N| Y| Y| Y| N
71762NX| 6091| Ultra Density Enterprise C19/C13 PDU Module| Y| Y| Y| Y| Y| Y| Y| Y| Y| Y| Y| Y| Y
1U C13 Enterprise PDUs (12x IEC 320 C13 outlets)
39Y8941| 6010| DPI C13 Enterprise PDU Module (WW)| Y| Y| Y| Y| Y| Y| Y| Y| Y| Y| Y| Y| Y
1U Front-end PDUs (3x IEC 320 C19 outlets)
39Y8938| 6002| DPI Single-phase 30A/120V Front-end PDU (US)| Y| Y| Y| Y| Y| Y| Y| Y| Y| Y| Y| Y| Y
39Y8939| 6003| DPI Single-phase 30A/208V Front-end PDU (US)| Y| Y| Y| Y| Y| Y| Y| Y| Y| Y| Y| Y| Y
39Y8934| 6005| DPI Single-phase 32A/230V Front-end PDU (International)| Y| Y| Y| Y| Y| Y| Y| Y| Y| Y| Y| Y| Y
39Y8940| 6004| DPI Single-phase 60A/208V Front-end PDU (US)| Y| N| Y| Y| Y| Y| Y| N| N| Y| Y| Y| N
39Y8935| 6006| DPI Single-phase 63A/230V Front-end PDU (International)| Y| Y| Y| Y| Y| Y| Y| Y| Y| Y| Y| Y| Y
1U NEMA PDUs (6x NEMA 5-15R outlets)
39Y8905| 5900| DPI 100-127V NEMA PDU| Y| Y| Y| Y| Y| Y| Y| Y| Y| Y| Y| Y| Y
Line cords for 1U PDUs that ship without a line cord
40K9611| 6504| 4.3m, 32A/380-415V, EPDU/IEC 309 3P+N+G 3ph wye (non-US) Line Cord| Y| Y| Y| Y| Y| Y| Y| Y| Y| Y| Y| Y| Y
40K9612| 6502| 4.3m, 32A/230V, EPDU to IEC 309 P+N+G (non-US) Line Cord| Y| Y| Y| Y| Y| Y| Y| Y| Y| Y| Y| Y| Y
40K9613| 6503| 4.3m, 63A/230V, EPDU to IEC 309 P+N+G (non-US) Line Cord| Y| Y| Y| Y| Y| Y| Y| Y| Y| Y| Y| Y| Y
40K9614| 6500| 4.3m, 30A/208V, EPDU to NEMA L6-30P (US) Line Cord| Y| Y| Y| Y| Y| Y| Y| Y| Y| Y| Y| Y| Y
40K9615| 6501| 4.3m, 60A/208V, EPDU to IEC 309 2P+G (US) Line Cord| N| N| Y| N| N| N| Y| N| N| Y| Y| Y| N
40K9617| 6505| 4.3m, 32A/230V, Souriau UTG Female to AS/NZ 3112 (Aus/NZ) Line Cord| Y| Y| Y| Y| Y| Y| Y| Y| Y| Y| Y| Y| Y
40K9618| 6506| 4.3m, 32A/250V, Souriau UTG Female to KSC 8305 (S. Korea) Line Cord| Y| Y| Y| Y| Y| Y| Y| Y| Y| Y| Y| Y| Y

For more information, see the Lenovo Press documents in the PDU category: https://lenovopress.com/servers/options/pdu

Rack cabinets
The following table lists the supported rack cabinets.
Table 76. Rack cabinets

For specifications about these racks, see the Lenovo Rack Cabinet Reference, available from:
https://lenovopress.com/lp1287-lenovo-rack-cabinet-reference
For more information, see the list of Product Guides in the Rack cabinets category:
https://lenovopress.com/servers/options/racks

KVM console options

The following table lists the supported KVM consoles.
Table 77. KVM console

The following table lists the available KVM switches and the options that are supported with them.
Table 79. KVM switches and options

KVM Console switches
1754D2X| Global 4x2x32 Console Manager (GCM32)
1754D1X| Global 2x2x16 Console Manager (GCM16)
1754A2X| Local 2×16 Console Manager (LCM16)
1754A1X| Local 1×8 Console Manager (LCM8)
Cables for GCM and LCM Console switches
46M5383| Virtual Media Conversion Option Gen2 (VCO2)
46M5382| Serial Conversion Option (SCO)

For more information, see the list of Product Guides in the KVM Switches and Consoles category: http://lenovopress.com/servers/options/kvm

Lenovo Financial Services

Lenovo Financial Services reinforces Lenovo’s commitment to deliver pioneering products and services that are recognized for their quality, excellence, and trustworthiness. Lenovo Financial Services offers financing solutions and services that complement your technology solution anywhere in the world.
We are dedicated to delivering a positive finance experience for customers like you who want to maximize your purchase power by obtaining the technology you need today, protect against technology obsolescence, and preserve your capital for other uses.
We work with businesses, non-profit organizations, governments and educational institutions to finance their entire technology solution. We focus on making it easy to do business with us. Our highly experienced team of finance professionals operates in a work culture that emphasizes the importance of providing outstanding customer service. Our systems, processes and flexible policies support our goal of providing customers with a positive experience.
We finance your entire solution. Unlike others, we allow you to bundle everything you need from hardware and software to service contracts, installation costs, training fees, and sales tax. If you decide weeks or months later to add to your solution, we can consolidate everything into a single invoice.
Our Premier Client services provide large accounts with special handling services to ensure these complex transactions are serviced properly. As a premier client, you have a dedicated finance specialist who manages your account through its life, from first invoice through asset return or purchase. This specialist develops an in-depth understanding of your invoice and payment requirements. For you, this dedication provides a high-quality, easy, and positive financing experience.
For your region-specific offers, please ask your Lenovo sales representative or your technology provider about the use of Lenovo Financial Services. For more information, see the following Lenovo website:
https://www.lenovo.com/us/en/landingpage/lenovo-financial-services/

Seller training courses

The following sales training courses are offered for employees and partners (login required). Courses are listed in date order.

1. Lenovo Data Center Product Portfolio
   2024-05-29 | 20 minutes | Employees and Partners
   This course introduces the Lenovo data center portfolio, and covers servers, storage, storage networking, and software-defined infrastructure products. After completing this course about Lenovo data center products, you will be able to identify product types within each data center family, describe Lenovo innovations that this product family or category uses, and recognize when a specific product should be selected.
   Published: 2024-05-29
   Length: 20 minutes
   Employee link: Grow@Lenovo
   Partner link: Lenovo Partner Learning
   Course code: SXXW1110r7

2. VTT Cloud Architecture: NVidia Using Cloud for GPUs and AI
   2024-05-22 | 60 minutes | Employees Only
   Join JD Dupont, NVIDIA Head of Americas Sales, Lenovo partnership and Veer Mehta, NVIDIA Solution Architect on an interactive discussion about cloud to edge, designing cloud Solutions with Nvidia GPUs and minimizing private\hybrid cloud OPEX with GPUs. Discover how you can use what is done at big public cloud providers for your customers. We will also walk through use cases and see a demo you can use to help your customers.
   Published: 2024-05-22
   Length: 60 minutes
   Employee link: Grow@Lenovo
   Course code: DVCLD212

3. Family Portfolio: ThinkSystem Rackmount Servers powered by AMD
   2024-05-13 | 25 minutes | Employees and Partners
   After completing this course, you will be able to identify products and features within the ThinkSystem AMD rack server family, describe unique innovations that this product family uses and recognize when a specific product should be selected.
   Published: 2024-05-13
   Length: 25 minutes
   Employee link: Grow@Lenovo
   Partner link: Lenovo Partner Learning
   Course code: SXXW1216r8

4. Partner Technical Webinar – ISG Portfolio Update
   2024-04-15 | 60 minutes | Employees and Partners
   In this 60-minute replay, Mark Bica, NA ISG Server Product Manager reviewed the Lenovo ISG portfolio. He covered new editions such as the SR680a \ SR685a, dense servers, and options that are strategic for any workload.
   Published: 2024-04-15
   Length: 60 minutes
   Employee link: Grow@Lenovo
   Partner link: Lenovo Partner Learning
   Course code: 041224

5. Partner Technical Webinar – StorMagic
   2024-03-19 | 60 minutes | Employees and Partners
   March 08, 2024 – In this 60-minute replay, Stuart Campbell and Wes Ganeko of StorMagic joined us and provided an overview of StorMagic on Lenovo. They also demonstrated the interface while sharing some interesting use cases.
   Published: 2024-03-19
   Length: 60 minutes
   Employee link: Grow@Lenovo
   Partner link: Lenovo Partner Learning
   Course code: 030824

6. Intel Transparent Supply Chain on Lenovo Servers
   2024-01-29 | 12 minutes | Employees and Partners
   This course introduces the Intel Transparent Supply Chain (TSC) program, explains how the program works, and discusses the benefits of the Intel TSC program to customers. Adding the Intel TSC feature to an order is explained.
   Course objectives:
   • Describe the Intel® Transparent Supply Chain program
   • Explain how the Intel® Transparent Supply Chain program works
   • Discuss the benefits of the Intel® Transparent Supply Chain program to Lenovo customers
   • Explain how to add Intel® Transparent Supply Chain program feature to an order
   Published: 2024-01-29
   Length: 12 minutes
   Employee link: Grow@Lenovo
   Partner link: Lenovo Partner Learning
   Course code: SXXW1230

7. Family Portfolio: Storage Controller Options
   2024-01-23 | 25 minutes | Employees and Partners
   This course covers the storage controller options available for use in Lenovo servers. The classes of storage controller are discussed, along with a discussion of where they are used, and which to choose.
   After completing this course, you will be able to:
   • Describe the classes of storage controllers
   • Discuss where each controller class is used
   • Describe the available options in each controller class
   Published: 2024-01-23
   Length: 25 minutes
   Employee link: Grow@Lenovo
   Partner link: Lenovo Partner Learning
   Course code: SXXW1111

8. Lenovo-Intel Sustainable Solutions QH
   2024-01-22 | 10 minutes | Employees and Partners
   This Quick Hit explains how Lenovo and Intel are committed to sustainability, and introduces the Lenovo-Intel joint sustainability campaign. You will learn how to use this campaign to show customers what that level of commitment entails, how to use the campaign’s unsolicited proposal approach, and how to use the campaign as a conversation starter which may lead to increased sales.
   Published: 2024-01-22
   Length: 10 minutes
   Employee link: Grow@Lenovo
   Partner link: Lenovo Partner Learning
   Course code: SXXW2524a

9. Family Introduction: Rack and Tower
   2024-01-19 | 11 minutes | Employees and Partners
   This course is designed to give Lenovo sales and partner representatives a foundation on the characteristics of the rack and tower server family. As an introduction to the family, this course also includes positioning, when to use a product, and keywords a client may use when discussing a rack product.
   Course Objectives:
   • Family Characteristics
   • Priority Positioning
   • Product Usage
   • Keywords and Phrases
   Published: 2024-01-19
   Length: 11 minutes
   Employee link: Grow@Lenovo
   Partner link: Lenovo Partner Learning
   Course code: SXXW1100r3

10. FY24Q3 Intel Servers Update
    2023-12-11 | 15 minutes | Employees and Partners
    This update is designed to help you discuss the features and customer benefits of Lenovo servers that use the 5th Gen Intel® Xeon® processors. Lenovo has also introduced a new server, the ThinkSystem SD650-N V3, which expands the supercomputer server family. Reasons to call your customer and talk about refreshing their infrastructure are also included as a guideline.
    Published: 2023-12-11
    Length: 15 minutes
    Employee link: Grow@Lenovo
    Partner link: Lenovo Partner Learning
    Course code: SXXW2522a

11. Partner Technical Webinar – Data Center Limits and ISG TAA Compliance
    2023-05-16 | 60 minutes | Employees and Partners
    In this 60-minute replay, we had two topics. First Vinod Kamath, Lenovo Distinguished Engineer for Data Center Cooling presented on the Systems Configuration and Data Center Ambient Limits.
    Second, Shama Patari, Lenovo Trade Council, and Glenn Johnson, Lenovo Principal Engineer for Supply Chain presented on ISG TAA Compliance.
    Published: 2023-05-16
    Length: 60 minutes
    Employee link: Grow@Lenovo
    Partner link: Lenovo Partner Learning
    Course code: 051223

12. Introduction to the AMD EPYC Gen4 Processors
    2022-12-30 | 10 minutes | Employees and Partners
    After completing this course, you should be able to describe the Gen4 AMD EPYC™ processors, discuss the new and improved features of the Gen4 processors, and describe the customer benefits of the AMD EPYC Gen4 processors. You should also be able to list the Lenovo servers that use AMD EPYC Gen4 processors.
    Published: 2022-12-30
    Length: 10 minutes
    Employee link: Grow@Lenovo
    Partner link: Lenovo Partner Learning
    Course code: SXXW2501

13. Lenovo Infrastructure Solutions Launch
    2022-09-16 | 8 minutes | Employees and Partners
    This Quick Hit introduces a wealth of new products, solutions, and services announced as part of the Lenovo ThinkSystem 30th Anniversary celebration.
    Published: 2022-09-16
    Length: 8 minutes
    Employee link: Grow@Lenovo
    Partner link: Lenovo Partner Learning
    Course code: FY23Q2a

14. Lenovo Sustainable Computing
    2022-09-16 | 4 minutes | Employees and Partners
    This Quick Hit describes the Lenovo sustainable computing program, and the many ways in which Lenovo strives to respect and protect the environment.
    Published: 2022-09-16
    Length: 4 minutes
    Employee link: Grow@Lenovo
    Partner link: Lenovo Partner Learning
    Course code: SXXW2504a

15. Introduction to DDR5 Memory
    2022-08-23 | 10 minutes | Employees and Partners
    This course introduces DDR5 memory, describes new features of this memory generation, and discusses the advantages to customers of this new memory generation.
    Published: 2022-08-23
    Length: 10 minutes
    Employee link: Grow@Lenovo
    Partner link: Lenovo Partner Learning
    Course code: SXXW2502

Related publications and links
For more information, see these resources:

• Lenovo ThinkSystem SR635 V3 product page:
  https://www.lenovo.com/us/en/p/servers-storage/servers/racks/thinksystem- sr635-v3/len21ts0020

• ThinkSystem SR635 V3 datasheet
  https://lenovopress.lenovo.com/ds0149

• ThinkSystem SR635 V3 drivers and support
  http://datacentersupport.lenovo.com/products/servers/thinksystem/sr635v3/7d9g/downloads

• Lenovo ThinkSystem SR635 V3 product publications:
  https://pubs.lenovo.com/sr635-v3/

  • User Guide, which includes:
    ◼ System Configuration Guide
    ◼ Hardware Maintenance Guide

  • Rack Installation Guides

  • Messages and Codes Reference

  • UEFI Manual for ThinkSystem Servers

• User Guides for options:
  https://serveroption.lenovo.com

• ServerProven hardware compatibility:
  http://serverproven.lenovo.com

Related product families
Product families related to this document are the following:

• 1-Socket Rack Servers
• ThinkSystem SR635 V3 Server

Notices
Lenovo may not offer the products, services, or features discussed in this document in all countries. Consult your local Lenovo representative for information on the products and services currently available in your area. Any reference to a Lenovo product, program, or service is not intended to state or imply that only that Lenovo product, program, or service may be used. Any functionally equivalent product, program, or service that does not infringe any Lenovo intellectual property right may be used instead. However, it is the user’s responsibility to evaluate and verify the operation of any other product, program, or service. Lenovo may have patents or pending patent applications covering subject matter described in this document. The furnishing of this document does not give you any license to these patents. You can send license inquiries, in writing, to:
Lenovo (United States), Inc.
8001 Development Drive
Morrisville, NC 27560
U.S.A.
Attention: Lenovo Director of Licensing
LENOVO PROVIDES THIS PUBLICATION ”AS IS” WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Some jurisdictions do not allow disclaimer of express or implied warranties in certain transactions, therefore, this statement may not apply to you.
This information could include technical inaccuracies or typographical errors. Changes are periodically made to the information herein; these changes will be incorporated in new editions of the publication. Lenovo may make improvements and/or changes in the product(s) and/or the program(s) described in this publication at any time without notice.
The products described in this document are not intended for use in implantation or other life support applications where malfunction may result in injury or death to persons. The information contained in this document does not affect or change Lenovo product specifications or warranties. Nothing in this document shall operate as an express or implied license or indemnity under the intellectual property rights of Lenovo or third parties. All information contained in this document was obtained in specific environments and is presented as an illustration. The result obtained in other operating environments may vary. Lenovo may use or distribute any of the information you supply in any way it believes appropriate without incurring any obligation to you.
Any references in this publication to non-Lenovo Web sites are provided for convenience only and do not in any manner serve as an endorsement of those Web sites. The materials at those Web sites are not part of the materials for this Lenovo product, and use of those Web sites is at your own risk. Any performance data contained herein was determined in a controlled environment. Therefore, the result obtained in other operating environments may vary significantly. Some measurements may have been made on development-level systems and there is no guarantee that these measurements will be the same on generally available systems. Furthermore, some measurements may have been estimated through extrapolation. Actual results may vary. Users of this document should verify the applicable data for their specific environment.
© Copyright Lenovo 2024. All rights reserved.

This document, LP1609, was created or updated on May 22, 2024.
Send us your comments in one of the following ways:

• Use the online Contact us review form found at:
  https://lenovopress.lenovo.com/LP1609

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This document is available online at https://lenovopress.lenovo.com/LP1609.

Trademarks
Lenovo and the Lenovo logo are trademarks or registered trademarks of Lenovo in the United States, other countries, or both. A current list of Lenovo trademarks is available on the Web at
https://www.lenovo.com/us/en/legal/copytrade/.
The following terms are trademarks of Lenovo in the United States, other countries, or both:
Lenovo®
AnyBay®
Bootable Media Creator
Flex System
Lenovo Neptune®
Lenovo Services
ServerProven®
System x®
ThinkShield®
ThinkServer®
ThinkSystem®
TopSeller
UpdateXpress System Packs
XClarity®
The following terms are trademarks of other companies:
Intel® and Xeon® are trademarks of Intel Corporation or its subsidiaries.
Linux® is the trademark of Linus Torvalds in the U.S. and other countries.
Microsoft®, ActiveX®, PowerShell, Windows PowerShell®, Windows Server®, and Windows® are trademarks of Microsoft Corporation in the United States, other countries, or both.
SPECpower® is a trademark of the Standard Performance Evaluation Corporation (SPEC).
Other company, product, or service names may be trademarks or service marks of others.
Downloaded from Arrow.com.

References

• Home - Data Center Support - Lenovo Support US
• servers :: thinksystem :: sr635v3 :: 7d9g Lenovo Data Center Support - Lenovo Support US
• Lenovo Capacity Planner (LCP) - Lenovo Support US
• DCSC - Data Center Solution Configurator
• Services Availability Locator
• Welcome | ServerProven
• Port of ThinkSystem Intel E810-DA2 10/25GbE SFP28 2-port Ethernet Adapter may disappear after reboot on systems with 4350-8i/16i, 5350-8i, 9350-8i/16i or 430-8i installed - Lenovo ThinkSystem - Lenovo Support US
• Lenovo XClarity Energy Manager (LXEM) - Lenovo Support US
• DCSC - Data Center Solution Configurator
• Grow@Lenovo
• Grow@Lenovo
• Grow@Lenovo
• Grow@Lenovo
• Grow@Lenovo
• Grow@Lenovo
• Grow@Lenovo
• Grow@Lenovo
• Grow@Lenovo
• Grow@Lenovo
• Grow@Lenovo
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• Grow@Lenovo
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