Lenovo ThinkSystem SR645 User Guide

: June 7, 2024
: Lenovo

Table of Contents

In the box
Setting up the system
Technical specifications
Where to go for support
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

Lenovo

ThinkSystem SR645 Quick Start

In the box

Server
Rail kit*
Cable management arm*
Material box, including items such as accessory kit, power cords* and documentation

Note : Items marked with asterisk (*) are available on some models only.
If any item is missing or damaged, contact your place of purchase.
Ensure that you retain your proof of purchase. They might be required to receive warranty service.

First glance
Front view:
Note : Your server might look different from the following illustrations.

Figure 1. Server model with 8 x 2.5-inch drive bays

Figure 1. Server model with 8 x 2.5-inch drive bays and pull-out LCD diagnostics panel

Figure 2. Server model with 8 x 2.5-inch drive bays

Figure 3. Server model with 10 x 2.5-inch drive bays

Figure 4. Server model with 4 x 2.5-inch drive bays

Figure 5. Server model with 4 x 3.5-inch drive bays

1 Drive status LED	2 Drive activity LED
3a LCD diagnostics panel	3b Diagnostics panel
4 Power button with power status LED	5 Network activity LED (for OCP 3.0

Ethernet
6 System ID button with system ID LED| 7 System error LED
8 USB 2.0 connector with XClarity Controller manangement| 9 USB 3.1 Gen 1 connector
10 Rack latch (right)| 11 External diagnostics connector
12 Pull-out information tab| 13 VGA connector (optional)
14 Drive bays| 15 Rack latch (left)

Rear view:

Figure 6. Rear view with one PCIe slot

Figure 6. Rear view with one PCIe slot and two 2.5-inch rear drive bays

Figure 7. Rear view with two PCIe slots and two 7mm rear drive
bays

Figure 7. Rear view with two PCIe slots and two 7mm rear drive bays

Figure 8. Rear view with two PCIe slots

Figure 9. Rear view with three PCIe slots

1 PCIe slots	2 Rear drive bays
3 Power supplies	4 NMI button
5 VGA connector	6 USB 3.1 Gen 1 connectors
7 System error LED	8 XClarity Controller network connector
9 System ID LED	10 Ethernet connectors on OCP 3.0 Ethernet adapter

(optional)

Setting up the system

1. Install the required server components.
2. Install the server into the rack.
3. Connect the server to power.
4. Connect the server to the network.
5. Turn on the server.
6. Configure the server.
For detailed information about installing hardware options and
configuring the server, see the following Web site: http://thinksystem.lenovofiles.com/help/topic/7d2x/introduction.html

configuring the server QR Code

Technical specifications

Dimensions and weight

Height: 43.0 mm (1.7 inches)
Width:
With rack latches: 481.7 mm (19.0 inches)
Without rack latches: 445.0 mm (17.5 inches)
Depth: 771.8 mm (30.4 inches)
Note : The depth is measured with rack latches installed, but without the security bezel installed.
Weight: up to 20.2 kg (44.6 lb)

Processor
Supports (depending on the model):

Two AMD® EPYC™ processors
Designed for Land Grid Array (LGA) 4094 (SP3) socket
Scalable up to 64 cores

For a list of supported processors, see the Lenovo ServerProven Web site: https://static.lenovo.com/us/en/serverproven/index.shtml

Memory

Slots: 32 DIMM slots
Minimum: 16 GB
Maximum: 4 TB
Type (depending on the model):
- TruDDR4 3200, dual-rank, 16 GB RDIMM
- TruDDR4 3200, dual-rank, 32 GB RDIMM
- TruDDR4 3200, dual-rank, 64 GB RDIMM
- TruDDR4 3200, dual-rank, 128 GB 3DS RDIMM

Note : Operating speed and total memory capacity depend on the processor model and UEFI settings.

Storage
Supports (depending on the model and installed drive backplanes):

Front bays:
- Up to 10 x 2.5-inch SAS/SATA/NVMe drives
- Up to 4 x 3.5-inch SAS/SATA/NVMe drives
Rear bays:
- Up to 2 x 2.5-inch SAS/SATA/NVMe drives
- Up to 2 x 7mm drives
Up to two internal M.2 drives

Networking

One XClarity Controller network connector
Ethernet connectors on OCP 3.0 Ethernet adapter

Where to go for support

Link	QR Code
Lenovo Press (Product guides and white papers)
https://lenovopress.com/
Lenovo ThinkSystem forum
https://forums.lenovo.com/t5/Datacenter-Systems/ct-p/sv_eg	![Lenovo

ThinkSystem forum QR Code](https://manuals.plus/wp-content/uploads/2021/06 /Lenovo-ThinkSystem-forum-QR-Code.jpg)
| Lenovo Support – SR645 (including drivers and software)
https://datacentersupport.lenovo.com/us/en/products/servers/thinksystem/sr645/7d2x| Lenovo Support QR Code
| Lenovo Product Security Advisories
https://support.lenovo.com/us/en/product_security/home| Lenovo Product
Security Advisories QR Code
| Lenovo ServerProven (Compatibility information) http://www.lenovo.com/us/en/serverproven/| Lenovo ServerProven QR
Code

Reduce | Deuse | Recycle

First Edition (June 2020)
© Copyright Lenovo 2020.
LIMITED AND RESTRICTED RIGHTS NOTICE: If data or software is delivered pursuant to a General Services Administration (GSA) contract, use, reproduction, or disclosure is subject to restrictions set forth in Contract No. GS‐35F‐05925.