DELL Technologies PYWGV All in One Computer New Retail Box Owner’s Manual
- June 1, 2024
- DELL Technologies
Table of Contents
PYWGV All in One Computer New Retail Box
Specifications
- Product Name: OptiPlex All-in-One Plus 7420
- Regulatory Model: W31C
- Regulatory Type: W31C002
- Release Date: March 2024
- Revision: A01
Product Information
Views of OptiPlex All-in-One Plus 7420
Right View
1. USB 3.2 Gen 2 (10 Gbps) with PowerShare
port
Connect devices such as external storage devices, printers, and
external displays. Provides a data transfer speed of up to 10 Gbps.
Supports Power Delivery that enables two-way power supply between
devices. Provides up to 10 W power output that enables faster
charging.
NOTE: PowerShare enables you to charge your USB devices
even when your computer is turned off.
NOTE: If a USB device is connected to the PowerShare
port before the computer is turned off or in hibernate state, you
must disconnect and connect it again to enable charging.
Left View
1. Storage drive activity light
The activity light turns on when the computer reads from or writes
to storage drives.
2. Universal audio port
Connect headphones or a headset (headphone and microphone
combo).
Product Usage Instructions
Setting Up Your Computer
Follow the instructions in Chapter 2 of the manual to properly
set up your OptiPlex All-in-One Plus 7420.
Power-Supply Unit
To remove or install the power-supply unit, refer to the
respective sections in Chapter 4 of the manual.
Software
Refer to Chapter 7 for information on the operating system,
drivers, and downloads related to your OptiPlex All-in-One Plus
7420.
System Setup Passwords
If you need to delete or change an existing system setup
password, follow the steps outlined in Chapter 5 of the manual.
Getting Help and Support
If you require assistance or need to contact Dell for any
reason, refer to Chapter 10 of the manual for guidance.
FAQ
Q: How do I enable charging on the PowerShare port?
A: If a USB device is connected to the PowerShare port before
the computer is turned off or in hibernate state, you must
disconnect and connect it again to enable charging.
OptiPlex All-in-One Plus 7420
Owner’s Manual
Regulatory Model: W31C Regulatory Type: W31C002 March 2024 Rev. A01
Notes, cautions, and warnings
NOTE: A NOTE indicates important information that helps you make better use of
your product. CAUTION: A CAUTION indicates either potential damage to hardware
or loss of data and tells you how to avoid the problem. WARNING: A WARNING
indicates a potential for property damage, personal injury, or death.
© 2024 Dell Inc. or its subsidiaries. All rights reserved. Dell Technologies,
Dell, and other trademarks are trademarks of Dell Inc. or its subsidiaries.
Other trademarks may be trademarks of their respective owners.
Contents
Chapter 1: Views of OptiPlex All-in-One Plus 7420……………………………………………………………….7
Right………………………………………………………………………………………………………………………………………………………………….7
Left……………………………………………………………………………………………………………………………………………………………………8
Front………………………………………………………………………………………………………………………………………………………………… 9
Retractable camera ………………………………………………………………………………………………………………………………………. 10
Bottom……………………………………………………………………………………………………………………………………………………………. 12 Back
panel……………………………………………………………………………………………………………………………………………………….13 Service
Tag……………………………………………………………………………………………………………………………………………………..14
Chapter 2: Set up your computer……………………………………………………………………………………. 15
Chapter 3: Specifications of OptiPlex All-in-One Plus 7420…………………………………………………
20 Dimensions and weight…………………………………………………………………………………………………………………………………. 20
Processor………………………………………………………………………………………………………………………………………………………. 20
Chipset…………………………………………………………………………………………………………………………………………………………….21
Operating system………………………………………………………………………………………………………………………………………….. 22
Memory………………………………………………………………………………………………………………………………………………………….. 22 External
ports…………………………………………………………………………………………………………………………………………………23 Internal
slots………………………………………………………………………………………………………………………………………………….. 23
Ethernet………………………………………………………………………………………………………………………………………………………….24 Wireless
module…………………………………………………………………………………………………………………………………………….. 24
Audio……………………………………………………………………………………………………………………………………………………………….24
Storage………………………………………………………………………………………………………………………………………………………….. 25 Media-
card reader………………………………………………………………………………………………………………………………………….25
Camera……………………………………………………………………………………………………………………………………………………………26 Power
ratings………………………………………………………………………………………………………………………………………………… 26 Power supply
connector……………………………………………………………………………………………………………………………….. 27
Display……………………………………………………………………………………………………………………………………………………………. 27 Dell
ComfortView………………………………………………………………………………………………………………………………………….. 28
GPU–Integrated………………………………………………………………………………………………………………………………………….. 29
GPU–Discrete……………………………………………………………………………………………………………………………………………… 29 Hardware
security…………………………………………………………………………………………………………………………………………. 30
Environmental……………………………………………………………………………………………………………………………………………….. 30
Operating and storage environment……………………………………………………………………………………………………………..30
Chapter 4: Working inside your computer…………………………………………………………………………32 Safety
instructions………………………………………………………………………………………………………………………………………… 32 Before
working inside your computer………………………………………………………………………………………………………32 Safety
precautions…………………………………………………………………………………………………………………………………… 33 Electrostatic
discharge–ESD protection………………………………………………………………………………………………. 33 ESD Field
Service kit ………………………………………………………………………………………………………………………………. 34 Transporting
sensitive components…………………………………………………………………………………………………………35 After working
inside your computer……………………………………………………………………………………………………….. 35
BitLocker………………………………………………………………………………………………………………………………………………….. 35
Contents
3
Recommended tools……………………………………………………………………………………………………………………………………… 35 Screw
list………………………………………………………………………………………………………………………………………………………..36 Major
components of your OptiPlex All-in-One Plus
7420…………………………………………………………………………..37
Chapter 5: Removing and installing Customer Replaceable Units
(CRUs)……………………………… 40
Stand……………………………………………………………………………………………………………………………………………………………… 40 Removing
the stand………………………………………………………………………………………………………………………………….40 Installing the
stand…………………………………………………………………………………………………………………………………….41 Back
cover…………………………………………………………………………………………………………………………………………………….. 43 Removing
the back cover…………………………………………………………………………………………………………………………43 Installing the
back cover………………………………………………………………………………………………………………………….. 43
Memory………………………………………………………………………………………………………………………………………………………….. 44 Removing
the memory…………………………………………………………………………………………………………………………….. 44 Installing the
memory………………………………………………………………………………………………………………………………. 45 Graphics
card………………………………………………………………………………………………………………………………………………… 47 Removing the
graphics card……………………………………………………………………………………………………………………. 47 Installing the
graphics card……………………………………………………………………………………………………………………… 49 System-board
shield……………………………………………………………………………………………………………………………………….51 Removing the
system-board shield…………………………………………………………………………………………………………. 51 Installing the
system-board shield……………………………………………………………………………………………………………52 Wireless
card…………………………………………………………………………………………………………………………………………………. 53 Removing the
wireless card……………………………………………………………………………………………………………………..53 Installing the
wireless card………………………………………………………………………………………………………………………. 54 Solid-state
drive in M.2 slot 0……………………………………………………………………………………………………………………….56 Removing
the M.2 2230 solid-state drive in M.2 slot 0………………………………………………………………………… 56
Installing the M.2 2230 solid-state drive in M.2 slot
0…………………………………………………………………………… 57 Removing the M.2 2280 solid-state drive in
M.2 slot 0………………………………………………………………………….57 Installing the M.2 2280 solid-state
drive in M.2 slot 0……………………………………………………………………………58 Location of the screw mount
on M.2 slot 0…………………………………………………………………………………………… 59 Solid-state drive in M.2
slot 1………………………………………………………………………………………………………………………..60 Removing the M.2 2230
solid-state drive in M.2 slot 1…………………………………………………………………………. 60 Installing the
M.2 2230 solid-state drive in M.2 slot 1……………………………………………………………………………. 61
Removing the M.2 2280 solid-state drive in M.2 slot
1…………………………………………………………………………. 62 Installing the M.2 2280 solid-state drive in
M.2 slot 1…………………………………………………………………………….63 Location of the screw mount on M.2
slot 1……………………………………………………………………………………………. 64 Coin-cell
battery…………………………………………………………………………………………………………………………………………….65 Removing the
coin-cell battery………………………………………………………………………………………………………………..65 Installing the
coin-cell battery…………………………………………………………………………………………………………………. 66 I/O
cover……………………………………………………………………………………………………………………………………………………….. 67 Removing
the I/O cover………………………………………………………………………………………………………………………….. 67 Installing
the I/O cover……………………………………………………………………………………………………………………………. 68 Bottom
cover………………………………………………………………………………………………………………………………………………… 69 Removing the
bottom cover…………………………………………………………………………………………………………………….69 Installing the
bottom cover……………………………………………………………………………………………………………………… 70 Retractable-
camera assembly………………………………………………………………………………………………………………………..71 Removing the
retractable-camera assembly…………………………………………………………………………………………… 71 Installing
the retractable-camera assembly……………………………………………………………………………………………..72
Fan…………………………………………………………………………………………………………………………………………………………………. 74 Removing
the fan…………………………………………………………………………………………………………………………………….. 74 Installing the
fan………………………………………………………………………………………………………………………………………. 75
4
Contents
Power-supply unit…………………………………………………………………………………………………………………………………………. 76
Removing the power-supply unit……………………………………………………………………………………………………………..76
Installing the power-supply unit………………………………………………………………………………………………………………. 77
Chapter 6: Removing and installing Field Replaceable Units
(FRUs)…………………………………….. 79 Power-supply
fan………………………………………………………………………………………………………………………………………….. 79 Removing the
power-supply fan……………………………………………………………………………………………………………… 79 Installing the
power-supply fan……………………………………………………………………………………………………………….. 82 I/O
bracket……………………………………………………………………………………………………………………………………………………. 85 Removing
the I/O bracket………………………………………………………………………………………………………………………. 85 Installing
the I/O bracket………………………………………………………………………………………………………………………….86
Speakers………………………………………………………………………………………………………………………………………………………… 87 Removing
the speakers……………………………………………………………………………………………………………………………. 87 Installing the
speakers……………………………………………………………………………………………………………………………… 88 Heat
sink…………………………………………………………………………………………………………………………………………………………89 Removing the
heat sink…………………………………………………………………………………………………………………………… 89 Installing the
heat sink…………………………………………………………………………………………………………………………….. 90
Processor……………………………………………………………………………………………………………………………………………………….. 91
Removing the processor……………………………………………………………………………………………………………………………91
Installing the processor……………………………………………………………………………………………………………………………. 92
System board………………………………………………………………………………………………………………………………………………… 94
Removing the system board……………………………………………………………………………………………………………………. 94
Installing the system board……………………………………………………………………………………………………………………… 98
Power-button and I/O board………………………………………………………………………………………………………………………..101
Removing the power-button and I/O board…………………………………………………………………………………………..
101 Installing the power-button and I/O
board…………………………………………………………………………………………… 102 Audio
board………………………………………………………………………………………………………………………………………………….. 104 Removing
the audio board………………………………………………………………………………………………………………………104 Installing the
audio board………………………………………………………………………………………………………………………..105 Display-assembly
base…………………………………………………………………………………………………………………………………. 107 Removing the
display-assembly base……………………………………………………………………………………………………..107 Installing
the display-assembly base……………………………………………………………………………………………………….108
Chapter 7: Software……………………………………………………………………………………………………. 110 Operating
system…………………………………………………………………………………………………………………………………………. 110 Drivers and
downloads…………………………………………………………………………………………………………………………………. 110
Chapter 8: BIOS Setup………………………………………………………………………………………………….111 Entering BIOS
setup program………………………………………………………………………………………………………………………. 111 Navigation
keys………………………………………………………………………………………………………………………………………………111 F12 One Time
Boot menu……………………………………………………………………………………………………………………………… 111 System setup
options…………………………………………………………………………………………………………………………………… 112 Updating the
BIOS………………………………………………………………………………………………………………………………………. 125 Updating the BIOS
in Windows……………………………………………………………………………………………………………… 125 Updating the BIOS
using the USB drive in Windows……………………………………………………………………………. 125 Updating the
BIOS in Linux and Ubuntu……………………………………………………………………………………………….. 125 Updating
the BIOS from the F12 One Time Boot menu……………………………………………………………………….. 125
System and setup password……………………………………………………………………………………………………………………….. 126
Assigning a System Setup password…………………………………………………………………………………………………….. 126
Contents
5
Deleting or changing an existing system setup
password……………………………………………………………………. 127 Clearing CMOS
settings……………………………………………………………………………………………………………………………….127 Clearing BIOS
(System Setup) and System passwords…………………………………………………………………………….. 127
Chapter 9: Troubleshooting…………………………………………………………………………………………. 129 Dell
SupportAssist Pre-boot System Performance Check
diagnostics…………………………………………………….. 129 Running the SupportAssist Pre-Boot
System Performance Check…………………………………………………….. 129 Power-Supply Unit Built-in
Self-Test ………………………………………………………………………………………………………… 129 System-diagnostic
lights………………………………………………………………………………………………………………………………130 Recovering the
operating system………………………………………………………………………………………………………………..130 Real Time
Clock–RTC reset………………………………………………………………………………………………………………………..131 Backup media
and recovery options……………………………………………………………………………………………………………. 131 Wi-Fi power
cycle………………………………………………………………………………………………………………………………………….131
Chapter 10: Getting help and contacting Dell………………………………………………………………….. 132
6
Contents
1
Views of OptiPlex All-in-One Plus 7420
Right
Figure 1. Right view of OptiPlex All-in-One Plus 7420
1. USB 3.2 Gen 2 (10 Gbps) with PowerShare port Connect devices such as
external storage devices, printers, and external displays. Provides a data
transfer speed of up to 10 Gbps. Supports Power Delivery that enables two-way
power supply between devices. Provides up to 10 W power output that enables
faster charging.
NOTE: PowerShare enables you to charge your USB devices even when your
computer is turned off.
NOTE: If a USB device is connected to the PowerShare port before the computer
is turned off or in hibernate state, you must disconnect and connect it again
to enable charging.
Views of OptiPlex All-in-One Plus 7420
7
Left
Figure 2. Left view of OptiPlex All-in-One Plus 7420
1. Storage drive activity light The activity light turns on when the computer
reads from or writes to storage drives.
2. Universal audio port Connect headphones or a headset (headphone and
microphone combo).
8
Views of OptiPlex All-in-One Plus 7420
Front
Figure 3. Front view of OptiPlex All-in-One Plus 7420
1. Left microphone Provides digital sound input for audio recording and voice
calls.
2. Right microphone Provides digital sound input for audio recording and
voice calls.
3. Retractable camera Enables you to video-chat, capture photos, and record
videos. To protect your privacy, this camera can be retracted when it is not
in use.
4. Right speaker Provides audio output.
5. Left speaker Provides audio output.
Views of OptiPlex All-in-One Plus 7420
9
Retractable camera
Locating the retractable camera
NOTE: To access your retractable camera, press down on the retractable camera
located at the top of your computer. To conceal your retractable camera and
protect your privacy, press down on the retractable camera until it clicks
into place.
Figure 4. Locating the retractable camera
NOTE: Depending on the configuration ordered your computer may have a 5MP RGB
- Infrared camera or an FHD RGB camera.
10
Views of OptiPlex All-in-One Plus 7420
Retractable camera for computers shipped with a 5MP RGB + Infrared camera
Figure 5. Retractable camera for computers shipped with a 5MP RGB + Infrared
camera 1. Infrared emitter
Emits infrared light, which enables the infrared camera to sense and track
motion. 2. Infrared camera
Enhances security when paired with Windows Hello face authentication. 3.
Camera
Enables you to video chat, capture photos, and record videos. 4. Infrared
emitter
Emits infrared light, which enables the infrared camera to sense and track
motion. 5. Camera-status light
Turns on when the camera is in use.
Views of OptiPlex All-in-One Plus 7420
11
Retractable camera for computers shipped with an FHD RGB camera
Figure 6. Retractable camera for computers shipped with an FHD RGB camera 1.
Camera
Enables you to video chat, capture photos, and record videos. 2. Camera-status
light
Turns on when the camera is in use.
Bottom
Figure 7. Bottom view of OptiPlex All-in-One Plus 7420
12
Views of OptiPlex All-in-One Plus 7420
1. Stand/VESA mount location Allows for the installation of a 100 mm x 100 mm
screw pitch VESA connection for use in standard environmental conditions, or
one of the stands offered by Dell for your OptiPlex All-in-One Plus 7420.
2. Service Tag label The Service Tag is a unique alphanumeric identifier that
enables Dell service technicians to identify the hardware components in your
computer and access warranty information.
3. Back panel Connect USB, audio, video, and other devices.
4. SD-card slot Insert an SD card here to read from and write to the SD card.
5. USB 3.2 Gen 2×2 (20 Gbps) Type C port Connect devices such as external
storage devices and printers. Provides a data transfer rate of up to 20 Gbps.
6. Display Built-in Self Test (BIST)/Display input button Press and hold this
button until your computer initiates the Built-in Self Test (BIST). Press to
switch display input to and from the device connected to the HDMI-in port on
the back panel.
7. Power button Press to turn on the computer if it is turned off, in sleep
state, or in hibernate state. When the computer is turned on, press the power
button to put the computer into sleep state; press and hold the power button
for 10 seconds to force shut-down the computer. NOTE: You can customize the
power-button behavior in Windows.
Back panel
Figure 8. Back panel view of OptiPlex All-in-One Plus 7420
1. HDMI-in 1.4b port Connect a gaming console, Blu-ray player, or other HDMI-
out enabled device.
2. HDMI-out 2.1 port Connect to a TV, external display or another HDMI-in
enabled device. Provides video and audio output and supports video output of
up to 4096 x 2160 at 60 Hz.
3. DisplayPort ++ 1.4a Connect an external display or a projector. Can
support video output of up to 5120 x 3200 at 60 Hz.
4. Network port Connect an Ethernet (RJ45) cable from a router or a broadband
modem for network or Internet access.
5. USB 3.2 Gen 1 (5 Gbps) with SmartPower On port
Views of OptiPlex All-in-One Plus 7420
13
Connect devices such as external storage devices and printers. Provides a data
transfer speed of up to 5 Gbps. NOTE: When USB wake is enabled in the BIOS the
computer will power on or wake from hibernation when a USB mouse or keyboard
that is connected to this port is used.
6. USB 3.2 Gen 1 (5 Gbps) with SmartPower On port Connect devices such as
external storage devices and printers. Provides a data transfer speed of up to
5 Gbps. NOTE: When USB wake is enabled in the BIOS the computer will power on
or wake from hibernation when a USB mouse or keyboard that is connected to
this port is used.
7. USB 3.2 Gen 2 (10 Gbps) port Connect devices such as external storage
devices and printers. Provides a data transfer speed of up to 10 Gbps.
8. USB 3.2 Gen 2 (10 Gbps) port Connect devices such as external storage
devices and printers. Provides a data transfer speed of up to 10 Gbps.
9. USB 3.2 Gen 2 (10 Gbps) port Connect devices such as external storage
devices and printers. Provides a data transfer speed of up to 10 Gbps.
10. Audio line-out port, retaskable Connect an audio device.
11. Power-cable connector Connect a power cable to provide power to your
computer.
12. Power-supply diagnostics light Indicates the power-supply state.
Service Tag
The service tag is a unique alphanumeric identifier that allows Dell service
technicians to identify the hardware components in your computer and access
warranty information.
Figure 9. Service tag location of your OptiPlex All-in-One Plus 7420
14
Views of OptiPlex All-in-One Plus 7420
2
Set up your computer
Steps 1. Install the stand base on the stand.
NOTE: Stand base installation for all stand configurations offered for your
computer is exactly the same. Follow the procedure shown in the image to
install the stand base on the stand.
Figure 10. Installing the stand base 2. Set up the stand by inserting it into
the slot on the back cover until it snaps into place.
NOTE: Stand installation for all stand configurations offered for your
computer is exactly the same. Follow the procedure shown in the image to
install the stand on your computer.
Set up your computer
15
Figure 11. Installing the stand
3. Set up the keyboard and mouse. NOTE: For setup instructions, see the
documentation shipped with the keyboard and mouse.
4. Connect the power cable.
16
Set up your computer
Figure 12. Connecting the power cable 5. Press the power button to turn on your computer.
Set up your computer
17
Figure 13. Pressing the power button
6. Finish the operating system setup. For Ubuntu: Follow the on-screen
instructions to complete the setup. For more information about installing and
configuring Ubuntu, see the knowledge base articles 000131655 and 000131676 at
www.dell.com/support.
For Windows: Follow the on-screen instructions to complete the setup. When
setting up, Dell recommends that you: Connect to a network for Windows
updates.
NOTE: If connecting to a secured wireless network, enter the password for the
wireless network access when prompted. If connected to the internet, sign-in
with or create a Microsoft account. If not connected to the internet, create
an offline account. NOTE: Depending on the version of Windows installed an
online connection may be required to set up your computer in order to sign-in
to your Microsoft account or to create a Microsoft account. On the Support and
Protection screen, enter your contact details.
7. Locate and use Dell apps from the Windows Start menu–Recommended
18
Set up your computer
Table 1. Locate Dell apps
Resources
Description
Dell Update
Updates your computer with critical fixes and latest device drivers as they
become available. For more information about using Dell Update, see the
product guides and third-party license documents at www.dell.com/support.
Dell Digital Delivery
Download software applications, which are purchased but not preinstalled on
your computer. For more information about using Dell Digital Delivery, search
in the Knowledge Base Resource at www.dell.com/support.
SupportAssist
SupportAssist proactively and predictively identifies hardware and software
issues on your computer and automates the engagement process with Dell
Technical support. It addresses performance and stabilization issues, prevents
security threats, monitors, and detects hardware failures. For more
information, see SupportAssist for Home PCs User’s Guide at www.dell.com/
support/home/product-support/product/dell-supportassist-pcs-tablets/docs.
NOTE: In SupportAssist, click the warranty expiry date to renew or upgrade
your warranty.
Set up your computer
19
3
Specifications of OptiPlex All-in-One Plus 7420
Dimensions and weight
The following table lists the height, width, depth, and weight of your OptiPlex All-in-One Plus 7420.
Table 2. Dimensions and weight Description Height:
Front height
Values 354.30 mm (13.95 in.)
Rear height
354.30 mm (13.95 in.)
Width
540 mm (21.26 in.)
Depth
57.90 mm (2.28 in.)
Weight NOTE: The weight of your computer depends on the configuration that is ordered and manufacturing variability.
Minimum: 6.33 kg (13.95 lb) Maximum: 6.76 kg (14.90 lb)
Processor
The following table lists the details of the processors supported by your
OptiPlex All-in-One Plus 7420.
20
Specifications of OptiPlex All-in-One Plus 7420
Table 3. Processor
Description Processor type
Option one Intel Core i3 14100
Processor wattage 60 W
Processor total
4
core count
Performance-cores 4
Efficient-cores
None
Processor total
8
thread counts
Option two Intel Core i5 14500 vPro
65 W
14
Option three Intel Core i5 14600 vPro
65 W
14
6
6
8
8
20
20
Option four
Option five
Intel Core i7 14700 Intel Core i9
vPro
14900 vPro
65 W
65 W
20
24
8
8
12
16
28
32
NOTE: Intel® Hyper-Threading Technology is only available on Performance- cores.
Processor speed Up to 4.70 GHz
Performance-cores frequency
Processor base 3.50 GHz frequency
Maximum turbo frequency
4.70 GHz
Efficient-cores frequency
Processor base Not applicable frequency
Maximum turbo frequency
Not applicable
Processor cache 12 MB
Integrated graphics
Intel UHD Graphics 730
Up to 5 GHz
2.60 GHz 5 GHz
1.90 GHz 3.70 GHz 24 MB Intel UHD Graphics 770
Up to 5.20 GHz
2.70 GHz 5.20 GHz
2 GHz 3.90 GHz 24 MB Intel UHD Graphics 770
Up to 5.40 GHz, Turbo Max Boost
Up to 5.60 GHz, Turbo Max Boost
2.10 GHz 5.30 GHz
2 GHz 5.40 GHz
1.50 GHz 4.20 GHz
1.50 GHz 4.30 GHz
33 MB
36 MB
Intel UHD Graphics Intel UHD
770
Graphics 770
Chipset
The following table lists the details of the chipset that is supported for your OptiPlex All-in-One Plus 7420.
Table 4. Chipset Description Chipset
Values Q670
Processor
Intel Core i3/i5 vPro/i7 vPro/i9 vPro
DRAM bus width
64-bit
Flash EPROM
32 MB + 16 MB
PCIe bus
Up to Gen4
Specifications of OptiPlex All-in-One Plus 7420
21
Operating system
Your OptiPlex All-in-One Plus 7420 supports the following operating systems:
Windows 11 Home, 64-bit Windows 11 Pro, 64-bit Windows 11 Pro National
Education, 64-bit Ubuntu Linux 22.04 LTS, 64-bit
For more information about Dell OS Recovery image, see How to Download and Use
the Dell OS Recovery Image in Microsoft Windows, at Dell support site.
Commercial platform Windows 11 N-2 and 5-year operating system supportability:
All newly introduced 2019 and later commercial platforms (Latitude, OptiPlex,
and Dell Precision) will qualify and ship with the most current factory
installed Semi-Annual Channel Windows 11 version (N) and qualify (but not
ship) the previous two versions (N-1, N-2). The OptiPlex All-in-One Plus 7420
will RTS with Windows 11 version v23H2 at time of launch, and this version
will determine the N-2 versions that are initially qualified for this
platform.
For future versions of Windows 11, Dell continues to test the commercial
platform with coming Windows 11 releases during device production and for five
years post-production, including both fall and spring releases from Microsoft.
For additional information about N-2 and 5-year Windows operating system
supportability, see the Dell Windows as a Service (WaaS), at Dell support
site.
EOML 411
The OptiPlex All-in-One Plus 7420 continues to test the coming Semi-Annual
Channel Windows 11 version releases for five years post-production, including
both fall and spring releases from Microsoft.
Memory
The following table lists the memory specifications of your OptiPlex All-in- One Plus 7420.
Table 5. Memory specifications Description Memory slots
Values Two SoDIMM slots
Memory type
DDR5
Memory speed Maximum memory configuration
4800 MT/s 5600 MT/s
64 GB
Minimum memory configuration
8 GB
Memory size per slot
8 GB, 16 GB, or 32 GB
Memory configurations supported
For computers shipped with an Intel Core i3 14100/i5 14500 vPro processor:
8 GB: 1 x 8 GB, DDR5, 4800 MT/s, single-channel 16 GB: 1 x 16 GB, DDR5, 4800
MT/s, single-channel 16 GB: 2 x 8 GB, DDR5, 4800 MT/s, dual-channel 32 GB: 1 x
32 GB, DDR5, 4800 MT/s, single-channel 32 GB: 2 x 16 GB, DDR5, 4800 MT/s,
dual-channel 64 GB: 2 x 32 GB, DDR5, 4800 MT/s, dual-channel
For computers shipped with an Intel Core i5 14600 vPro/i7 14700 vPro/i9 14900
vPro processor:
8 GB: 1 x 8 GB, DDR5, 5600 MT/s, single-channel 16 GB: 1 x 16 GB, DDR5, 5600
MT/s, single-channel
22
Specifications of OptiPlex All-in-One Plus 7420
Table 5. Memory specifications (continued) Description
Values
16 GB: 2 x 8 GB, DDR5, 5600 MT/s, dual-channel 32 GB: 1 x 32 GB, DDR5, 5600
MT/s, single-channel 32 GB: 2 x 16 GB, DDR5, 5600 MT/s, dual-channel 64 GB: 2
x 32 GB, DDR5, 5600 MT/s, dual-channel
External ports
The following table lists the external ports of your OptiPlex All-in-One Plus 7420.
Table 6. External ports Description Network port
Values One RJ45 Ethernet Port 10/100/1000 Mbps
USB ports
One USB 3.2 Gen 2 (10 Gbps) with PowerShare port One USB 3.2 Gen 2×2 (20 Gbps) Type-C port Three USB 3.2 Gen 2 (10 Gbps) ports Two USB 3.2 Gen 1 (5 Gbps) with SmartPower On ports
Audio port
One universal audio port One audio line-out port, retaskable
Video port Media-card reader
One DisplayPort++ 1.4a port One HDMI-in 1.4b port One HDMI-out 2.1 port
One SD-card slot
Power-adapter port
One power-cable connector
Security-cable slot
One security-cable slot (3 mm x 7 mm, T-Bar design)
Internal slots
The following table lists the internal slots of your OptiPlex All-in-One Plus 7420.
Table 7. Internal slots Description M.2
Values
One M.2 2230 slot for WiFi and Bluetooth combo card Two M.2 2230/2280 slots
for solid-state drive
NOTE: To learn more about the features of different types of M.2 cards, search
in the Knowledge Base Resource at www.dell.com/support.
Specifications of OptiPlex All-in-One Plus 7420
23
Ethernet
The following table lists the wired Ethernet Local Area Network (LAN) specifications of your OptiPlex All-in-One Plus 7420.
Table 8. Ethernet specifications Description Model number
Values Intel i219-LM
Transfer rate
10/100/1000 Mbps
Wireless module
The following table lists the Wireless Local Area Network (WLAN) module specifications of your OptiPlex All-in-One Plus 7420.
Table 9. Wireless module specifications
Description
Option one
Model number
AX201
Option two Intel AX211
Option three Realtek RTL8852BE
Transfer rate
Up to 2400 Mbps
Up to 2400 Mbps
Up to 1201 Mbps
Frequency bands supported 2.4 GHz/5 GHz
2.4 GHz/5 GHz/6 GHz
2.4 GHz/5 GHz
Wireless standards
Wi-Fi 802.11a/b/g Wi-Fi 4 (WiFi 802.11n) Wi-Fi 5 (WiFi 802.11ac) Wi-Fi 6 (WiFi 802.11ax)
Wi-Fi 802.11a/b/g Wi-Fi 4 (WiFi 802.11n) Wi-Fi 5 (WiFi 802.11ac) Wi-Fi 6E (WiFi 802.11ax)
Wi-Fi 802.11a/b/g Wi-Fi 4 (Wi-Fi 802.11n) Wi-Fi 5 (Wi-Fi 802.11ac) Wi-Fi 6 (WiFi 802.11ax)
Encryption
64-bit/128-bit WEP AES-CCMP TKIP
64-bit/128-bit WEP AES-CCMP TKIP
64-bit/128-bit WEP AES-CCMP TKIP
Bluetooth wireless card
Bluetooth 5.2
Bluetooth 5.3
Bluetooth 5.3
NOTE: The version of the Bluetooth wireless card may vary depending on the operating system that is installed on your computer.
Audio
The following table lists the audio specifications of your OptiPlex All-in-One Plus 7420.
Table 10. Audio specifications Description Audio controller
Values Realtek ALC3289
Stereo conversion
Supported
Internal audio interface
High definition audio interface
External audio interface Number of speakers
One universal audio port One audio line-out port, retaskable
Two stereo speakers
24
Specifications of OptiPlex All-in-One Plus 7420
Table 10. Audio specifications (continued) Description Internal-speaker amplifier
External volume controls
Speaker output:
Average speaker output
Peak speaker output
Subwoofer output
Microphone
Values Supported, Realtek Amplifier ALC1302 Not supported
5 W 6 W Not supported Two microphones in the retractable-camera assembly
Storage
This section lists the storage options on your OptiPlex All-in-One Plus 7420.
Your OptiPlex All-in-One Plus 7420 supports one of the following storage
configurations: One M.2 2230/2280 solid-state drive Up to two M.2 2230/2280
solid-state drives The primary drive of your OptiPlex All-in-One Plus 7420
varies with the storage configuration. For computers the primary drive is the
M.2 drive where the operating system is installed.
Table 11. Storage specifications Storage type M.2 2230 solid-state drive, Class 25
Interface type PCIe Gen4 x4 NVMe, up to 64 Gbps
Capacity Up to 2 TB
M.2 2230 solid-state drive, Class 35
PCIe Gen4 x4 NVMe, up to 64 Gbps
Up to 1 TB
M.2 2280 solid-state drive, Class 40
PCIe Gen4 x4 NVMe, up to 64 Gbps
Up to 2 TB
M.2 2230 solid-state drive, selfencrypting, Class 35
PCIe Gen4 x4 NVMe, up to 64 Gbps
Up to 256 GB
M.2 2280 solid-state drive, selfencrypting, Class 40
PCIe Gen4 x4 NVMe, up to 64 Gbps
Up to 512 GB
Media-card reader
The following table lists the media cards that are supported on your OptiPlex All-in-One Plus 7420.
Table 12. Media-card reader specifications Description Media-card type
Media-cards supported
Values
One SD-card slot
Secure Digital (SD) Secure Digital High Capacity (SDHC) Secure Digital
Extended Capacity (SDXC)
NOTE: The maximum capacity supported by the media-card reader varies depending on the standard of the media card that is installed on your computer.
Specifications of OptiPlex All-in-One Plus 7420
25
Camera
The following table lists the camera specifications of your OptiPlex All-in- One Plus 7420.
Table 13. Camera specifications Description Number of cameras
Values One
Camera type Camera location
FHD RGB camera 5MP RGB + Infrared camera
Retractable camera
Camera sensor type
CMOS sensor technology
Camera resolution: Still image
Video
Infrared camera resolution: Still image
FHD RGB Camera: 2.07 megapixels 5MP RGB Camera: 4.92 megapixels FHD RGB
Camera: 1920 x 1080 (FHD) at 30 fps 5MP RGB Camera: 2560 x 1920 (5MP) at 30
fps
0.23 megapixel, only on computers with an infrared camera
Video
640 x 360 (nHD) at 30 fps, only on computers with an infrared camera
Diagonal viewing angle: Camera
Infrared camera
FHD RGB Camera: 82 degrees 5MP RGB Camera: 85.90 degrees
76.10 degrees, only on computers with an infrared camera
Power ratings
The following table lists the power rating specifications of OptiPlex All-in- One Plus 7420.
Table 14. Power ratings Description Type
Option one
Option two
160 W internal power supply unit (PSU), 240 W internal power supply unit (PSU),
85% efficient, 80 Plus Bronze
92% efficient, 80 Plus Platinum
Input voltage
90 VAC264 VAC
90 VAC264 VAC
Input frequency
47 Hz63 Hz
47 Hz63 Hz
Input current (maximum)
2.80 A
3.80 A
Output current (continuous)
Operating:
19.50 VA: 7 A 19.50 VB: 5 A Standby:
Operating:
19.50 VA: 8 A 19.50 VB: 9 A Standby:
26
Specifications of OptiPlex All-in-One Plus 7420
Table 14. Power ratings (continued)
Description
Option one
19.50 VA: 0.50 A 19.50 VB: 1.75 A
Rated output voltage
19.50 VA 19.50 VB
Temperature range: Operating
5°C to 42°C (41°F to 107.6°F)
Storage
-40°C to 70°C (-40°F to 158°F)
Option two 19.50 VA: 0.50 A 19.50 VB: 1.75 A 19.50 VA 19.50 VB
5°C to 42°C (41°F to 107.6°F) -40°C to 70°C (-40°F to 158°F)
Power supply connector
The following table lists the Power supply connector specifications of your OptiPlex All-in-One Plus 7420.
Table 15. Power supply connector Power supply 160 W internal power supply unit
(PSU), 80 Plus Bronze
240 W internal power supply unit (PSU), 80 Plus Platinum
Connectors
One 8-pin connector for processor One 6-pin connector for system board One
6-pin connector for control signal One 2-pin connector for LED
One 8-pin connector for processor One 6-pin connector for system board One
6-pin connector for control signal One 2-pin connector for LED
Display
The following table lists the display specifications of your OptiPlex All-in- One Plus 7420.
Table 16. Display specifications Description Display type
Option one
Option two
Full High Definition (FHD), ComfortView Full High Definition (FHD), ComfortView
Plus
Plus
Touch options
No
Touch support, with 10 touch points
Display-panel technology
In-Plane Switching (IPS)
In-Plane Switching (IPS)
Display-panel dimensions (active area): Height
296.46 mm (11.67 in.)
296.46 mm (11.67 in.)
Width
527.04 mm (20.75 in.)
527.04 mm (20.75 in.)
Diagonal
604.70 mm (23.81 in.)
604.70 mm (23.81 in.)
Display-panel native resolution
1920 x 1080
1920 x 1080
Luminance (typical)
250 nits
300 nits
Specifications of OptiPlex All-in-One Plus 7420
27
Table 16. Display specifications (continued)
Description Megapixels
Option one 2.07
Color gamut
99% (sRGB)
Pixels Per Inch (PPI)
92
Contrast ratio (minimum)
700:1, minimum 1000:1, typical
Response time (maximum)
25 ms, minimum 14 ms, typical
Refresh rate
60 Hz
Horizontal view angle
+/- 85 degrees, minimum +/- 89 degrees, typical
Vertical view angle
+/- 85 degrees, minimum +/- 89 degrees, typical
Pixel pitch
0.27 mm
Power consumption (maximum)
14.11 W
Anti-glare vs glossy finish
Anti-glare
Option two 2.07
99% (sRGB)
92
700:1, minimum 1000:1, typical
20 ms, minimum 14 ms, typical
60 Hz
+/- 85 degrees, minimum +/- 89 degrees, typical
+/- 85 degrees, minimum +/- 89 degrees, typical
0.27 mm
17.26 W
Anti-glare
Dell ComfortView
CAUTION: Prolonged exposure to blue light, particularly from digital sources,
may disrupt sleep patterns and cause long-term effects such as eye strain, eye
fatigue, or damage to the eyes.
Blue light is a color in the white light spectrum which has a short wavelength
and high frequency. Chronic exposure to blue light, particularly from digital
sources, may disrupt sleep patterns and change our body’s Circadian rhythm.
Using the computer for an extended period may also cause fatigue in other body
parts such as the neck, arm, back, and shoulder.
Dell low blue light displays optimize eye comfort with a flicker-free screen.
The device uses flicker-free technology and maintains a stable backlight.
Flicker-Free technology clears the visible flicker, brings comfortable viewing
experience, and protects users from eye strain and fatigue. The ComfortView
feature reduces the amount of blue light emitted from the monitor to optimize
eye comfort. ComfortView mode can be enabled and configured using the Dell
CinemaColor (DCC) application.
Dell CinemaColor
Dell CinemaColor (DCC) combines the hardware and software to deliver clear
visuals that appear every bit as vibrant as the world around you. The DCC has
four color profiles that optimize these settings depending on the content and
your surroundings.
When you open DCC, you can choose Movie (default), ComfortView, Sports, or
Animation from the list. The ComfortView Profile optimizes eye comfort by
reducing harmful blue light emissions to make extended screen time easy on
your eyes compared to standard digital panels while still retaining the
vibrant colors.
ComfortView mode reduces hazardous blue light by adjusting display parameters.
You can adjust the Saturation, Temperature, and Contrast values to create your
custom setting in the ComfortView mode.
NOTE: For more information on how to download and install DellCinema
components, search about it in the Knowledge Base Resource at Dell Support.
28
Specifications of OptiPlex All-in-One Plus 7420
ComfortView Plus
ComfortView Plus is a built-in, always-on, and virtually unnoticeable low blue
light solution for Dell displays. ComfortView Plus employs a hardware-based
design that allows for a wider blue spectrum, with a much lower peak and
reduced intensity. Dell ComfortView Plus has been certified by TÜV Rheinland
as a low blue light hardware solution. This feature is enabled at the factory.
NOTE: ComfortView Plus is an optional hardware feature to be configured at the
point of sale.
To reduce the risk of eye strain, it is also recommended that you:
Position the display at a comfortable viewing distance between 20 in. to 28
in. (50 cm and 70 cm) from your eyes. Blink frequently to moisten your eyes,
wet your eyes with water, or apply suitable eye drops. Look away from your
display, and gaze at a distant object at 20 ft (609.60 cm) away for at least
20 seconds during each
break. Take an extended break for 20 minutes every two hours.
GPU–Integrated
The following table lists the specifications of the integrated Graphics Processing Unit (GPU) supported by your OptiPlex All-in-One Plus 7420.
Table 17. GPU–Integrated
Controller
External display support
Intel UHD Graphics 730
One DisplayPort++ 1.4a port (5120 x 3200 at 60 Hz)
One HDMI-out 2.1 port (4096 x 2160 at 60 Hz)
Memory size Shared system memory
Processor Intel Core i3
Intel UHD Graphics 770
One DisplayPort++ 1.4a port (5120 x 3200 at 60 Hz)
One HDMI-out 2.1 port (4096 x 2160 at 60 Hz)
Shared system memory
Intel Core i5 vPro/i7 vPro/i9 vPro
GPU–Discrete
The following table lists the specifications of the discrete Graphics Processing Unit (GPU) supported by your OptiPlex All-inOne Plus 7420.
Table 18. GPU–Discrete
Controller
External display support
Memory size
Memory type
AMD Radeon RX 6500
One DisplayPort++ 1.4a port (5120 x 3200 at 60 Hz)
One HDMI-out 2.1 port (4096 x 2160 at 60 Hz)
4 GB
GDDR6
Specifications of OptiPlex All-in-One Plus 7420
29
Hardware security
The following table lists the hardware security of your OptiPlex All-in-One
Plus 7420.
Table 19. Hardware security Hardware security Kensington security-cable slot
Chassis intrusion switch Trusted Platform Module (Discrete TPM Enabled)
SafeBIOS including Dell Off-host BIOS Verification BIOS Resilience BIOS
Recovery, and additional BIOS Controls SafeID including Trusted Platform
Module (TPM) 2.0 Self-Encrypting Drives (SED) D-Pedigree (Secure Supply Chain
Functionality)
Environmental
The following table lists the environmental specifications of your OptiPlex All-in-One Plus 7420.
Table 20. Environmental Feature Recyclable packaging BFR/PVC–free chassis Vertical orientation packaging support Multi-Pack packaging Energy-Efficient Power Supply ENV0424 compliant
Values Yes Yes Yes No Yes Yes
NOTE: Wood-based fiber packaging contains a minimum of 35% recycled content by total weight of wood-based fiber. Packaging that contains without wood-based fiber can be claimed as Not Applicable. The anticipated required criteria for EPEAT 2018.
Operating and storage environment
This table lists the operating and storage specifications of your OptiPlex All-in-One Plus 7420. Airborne contaminant level: G1 as defined by ISA-S71.04-1985
Table 21. Computer environment Description Temperature range
Operating 0°C to 35°C (32°F to 95°F)
Storage -40°C to 65°C (-40°F to 149°F)
Relative humidity (maximum)
10% to 90% (non-condensing)
0% to 95% (non-condensing)
Vibration (maximum)*
0.26 GRMS
1.30 GRMS
30
Specifications of OptiPlex All-in-One Plus 7420
Table 21. Computer environment (continued)
Description Shock (maximum)
40 G
Operating
Altitude range
-15.2 m to 3048 m (-49.87 ft to 10000 ft)
160 G
Storage
-15.2 m to 10668 m (-49.87 ft to 35000 ft)
CAUTION: Operating and storage temperature ranges may differ among components, so operating or storing the device outside these ranges may impact the performance of specific components.
- Measured using a random vibration spectrum that simulates the user environment. Measured using a 2 ms half-sine pulse.
Specifications of OptiPlex All-in-One Plus 7420
31
4
Working inside your computer
Safety instructions
Use the following safety guidelines to protect your computer from potential
damage and to ensure your personal safety. Unless otherwise noted, each
procedure in this document assumes that you have read the safety information
that shipped with your computer.
WARNING: Before working inside your computer, read the safety information that
is shipped with your computer. For more safety best practices, see the
Regulatory Compliance home page at www.dell.com/ regulatory_compliance.
WARNING: Disconnect your computer from all power sources before opening the
computer cover or panels. After you finish working inside the computer,
replace all covers, panels, and screws before connecting your computer to an
electrical outlet.
CAUTION: To avoid damaging the computer, ensure that the work surface is flat,
dry, and clean.
CAUTION: To avoid damaging the components and cards, handle them by their
edges, and avoid touching the pins and the contacts.
CAUTION: You should only perform troubleshooting and repairs as authorized or
directed by the Dell technical assistance team. Damage due to servicing that
is not authorized by Dell is not covered by your warranty. See the safety
instructions that is shipped with the product or at
www.dell.com/regulatory_compliance.
CAUTION: Before touching anything inside your computer, ground yourself by
touching an unpainted metal surface, such as the metal at the back of the
computer. While you work, periodically touch an unpainted metal surface to
dissipate static electricity which could harm internal components.
CAUTION: When you disconnect a cable, pull it by its connector or its pull
tab, not the cable itself. Some cables have connectors with locking tabs or
thumbscrews that you must disengage before disconnecting the cable. When
disconnecting cables, keep them evenly aligned to avoid bending the connector
pins. When connecting cables, ensure that the ports and the connectors are
correctly oriented and aligned.
CAUTION: Press and eject any installed card from the media-card reader.
CAUTION: Exercise caution when handling rechargeable Li-ion batteries in
laptops. Swollen batteries should not be used and should be replaced and
disposed properly.
NOTE: The color of your computer and certain components may differ from what
is shown in this document.
Before working inside your computer
About this task NOTE: The images in this document may differ from your computer depending on the configuration you ordered.
Steps 1. Save and close all open files and exit all open applications. 2. Shut down your computer. For Windows operating system, click Start >
Power > Shut down.
32
Working inside your computer
NOTE: If you are using a different operating system, see the documentation of
your operating system for shut-down instructions.
3. Disconnect your computer and all attached devices from their electrical
outlets. 4. Disconnect all attached network devices and peripherals, such as
keyboard, mouse, and monitor from your computer.
CAUTION: To disconnect a network cable, first unplug the cable from your
computer and then unplug the cable from the network device.
5. Remove any media card and optical disc from your computer, if applicable.
Safety precautions
The safety precautions chapter details the primary steps to be taken before
performing any disassembly instructions. Observe the following safety
precautions before you perform any installation or break-fix procedures
involving disassembly or reassembly: Turn off the computer and all attached
peripherals. Disconnect the computer and all attached peripherals from AC
power. Disconnect all network cables, telephone, and telecommunications lines
from the computer. Use an ESD field service kit when working inside any
desktop to avoid electrostatic discharge (ESD) damage. After removing any
computer component, carefully place the removed component on an anti-static
mat. Wear shoes with non-conductive rubber soles to reduce the chance of
getting electrocuted. Unplugging, pressing, and holding the power button for
15 seconds should discharge residual power in the system board.
Standby power
Dell products with standby power must be unplugged before you open the case.
Systems that incorporate standby power are powered while turned off. The
internal power enables the computer to be remotely turned on (Wake-on-LAN) and
suspended into a sleep mode and has other advanced power management features.
Bonding
Bonding is a method for connecting two or more grounding conductors to the
same electrical potential. This is done by using a field service electrostatic
discharge (ESD) kit. When connecting a bonding wire, ensure that it is
connected to bare metal and never to a painted or nonmetal surface. The wrist
strap should be secure and in full contact with your skin, and ensure that you
remove all jewelry such as watches, bracelets, or rings prior to bonding
yourself and the equipment.
Electrostatic discharge–ESD protection
ESD is a major concern when you handle electronic components, especially
sensitive components such as expansion cards, processors, memory modules, and
system boards. Slight charges can damage circuits in ways that may not be
obvious, such as intermittent problems or a shortened product life span. As
the industry pushes for lower power requirements and increased density, ESD
protection is an increasing concern. Due to the increased density of
semiconductors used in recent Dell products, the sensitivity to static damage
is now higher than in previous Dell products. For this reason, some previously
approved methods of handling parts are no longer applicable. Two recognized
types of ESD damage are catastrophic and intermittent failures. Catastrophic
Catastrophic failures represent approximately 20 percent of ESD-related
failures. The damage causes an
immediate and complete loss of device functionality. An example of
catastrophic failure is a memory DIMM that has received a static shock and
immediately generates a “No POST/No Video” symptom with a beep code that is
emitted for missing or nonfunctional memory. Intermittent Intermittent
failures represent approximately 80 percent of ESD-related failures. The high
rate of intermittent failures means that most of the time when damage occurs,
it is not immediately recognizable. The DIMM receives a static shock, but the
tracing is merely weakened and does not immediately produce outward symptoms
that are related to the damage. The weakened trace may take weeks or months to
melt, and in the meantime may cause degradation of memory integrity,
intermittent memory errors, and so on.
Working inside your computer
33
The more difficult type of damage to recognize and troubleshoot is the
intermittent (also called latent or “walking wounded”) failure.
Perform the following steps to prevent ESD damage: Use a wired ESD wrist strap
that is properly grounded. Wireless anti-static straps do not provide adequate
protection.
Touching the chassis before handling parts does not ensure adequate ESD
protection on parts with increased sensitivity to ESD damage. Handle all
static-sensitive components in a static-safe area. If possible, use anti-
static floor pads and workbench pads. When unpacking a static-sensitive
component from its shipping carton, do not remove the component from the anti-
static packing material until you are ready to install the component. Before
unwrapping the anti-static packaging, ensure that you discharge static
electricity from your body. Before transporting a static-sensitive component,
place it in an anti-static container or packaging.
ESD Field Service kit
The unmonitored Field Service kit is the most commonly used service kit. Each
Field Service kit includes three main components: anti-static mat, wrist
strap, and bonding wire.
Components of an ESD field service kit
The components of an ESD field service kit are: Anti-Static Mat The anti-
static mat is dissipative and parts can be placed on it during service
procedures. When using an
anti-static mat, your wrist strap should be snug and the bonding wire should
be connected to the mat and to any bare metal on the computer being worked on.
Once deployed properly, service parts can be removed from the ESD bag and
placed directly on the mat. ESD-sensitive items are safe in your hand, on the
ESD mat, in the computer, or inside an ESD bag. Wrist Strap and Bonding Wire
The wrist strap and bonding wire can be either directly connected between your
wrist and bare metal on the hardware if the ESD mat is not required, or
connected to the anti-static mat to protect hardware that is temporarily
placed on the mat. The physical connection of the wrist strap and bonding wire
between your skin, the ESD mat, and the hardware is known as bonding. Use only
Field Service kits with a wrist strap, mat, and bonding wire. Never use
wireless wrist straps. Always be aware that the internal wires of a wrist
strap are prone to damage from normal wear and tear, and must be checked
regularly with a wrist strap tester in order to avoid accidental ESD hardware
damage. It is recommended to test the wrist strap and bonding wire at least
once per week. ESD Wrist Strap Tester The wires inside an ESD strap are
prone to damage over time. When using an unmonitored kit, it is a best
practice to regularly test the strap prior to each service call, and at a
minimum, test once per week. A wrist strap tester is the best method for doing
this test. If you do not have your own wrist strap tester, check with your
regional office to find out if they have one. To perform the test, plug the
bonding-wire of wrist-strap into the tester while it is strapped to your wrist
and push the button to test. A green LED is lit if the test is successful; a
red LED is lit and an alarm sounds if the test fails. Insulator Elements It
is critical to keep ESD sensitive devices, such as plastic heat sink casings,
away from internal parts that are insulators and often highly charged. Working
Environment Before deploying the ESD Field Service kit, assess the situation
at the customer location. For example, deploying the kit for a server
environment is different than for a desktop or laptop environment. Servers are
typically installed in a rack within a data center; desktops or laptops are
typically placed on office desks or cubicles. Always look for a large open
flat work area that is free of clutter and large enough to deploy the ESD kit
with additional space to accommodate the type of computer that is being
repaired. The workspace should also be free of insulators that can cause an
ESD event. On the work area, insulators such as Styrofoam and other plastics
should always be moved at least 12 inches or 30 centimeters away from
sensitive parts before physically handling any hardware components. ESD
Packaging All ESD-sensitive devices must be shipped and received in static-
safe packaging. Metal, static-shielded bags are preferred. However, you should
always return the damaged part using the same ESD bag and packaging that the
new part arrived in. The ESD bag should be folded over and taped shut and all
the same foam packing material should be used in the original box that the new
part arrived in. ESD-sensitive devices should be removed from packaging only
at an ESD-protected work surface, and parts should never be placed on top of
the ESD bag because only the inside of the bag is shielded. Always place parts
in your hand, on the ESD mat, in the computer, or inside an anti-static bag.
Transporting Sensitive Components When transporting ESD sensitive components
such as replacement parts or parts to be returned to Dell, it is critical to
place these parts in anti-static bags for safe transport.
34
Working inside your computer
ESD protection summary
It is recommended to always use the traditional wired ESD grounding wrist
strap and protective anti-static mat when servicing Dell products. In
addition, it is critical to keep sensitive parts separate from all insulator
parts while performing service and use anti-static bags for transporting
sensitive components.
Transporting sensitive components
When transporting ESD sensitive components such as replacement parts or parts
to be returned to Dell, it is critical to place these parts in anti-static
bags for safe transport.
Lifting equipment
Adhere to the following guidelines when lifting heavy equipment: CAUTION: Do
not lift greater than 50 pounds. Always obtain additional resources or use a
mechanical lifting device.
1. Get a firm balanced footing. Keep your feet apart for a stable base, and
point your toes out. 2. Tighten stomach muscles. Abdominal muscles support
your spine when you lift, offsetting the force of the load. 3. Lift with your
legs, not your back. 4. Keep the load close. The closer it is to your spine,
the less force it exerts on your back. 5. Keep your back upright, whether
lifting or setting down the load. Do not add the weight of your body to the
load. Avoid
twisting your body and back. 6. Follow the same technique in reverse to set
the load down.
After working inside your computer
About this task
CAUTION: Leaving stray or loose screws inside your computer may severely
damage your computer.
Steps 1. Replace all screws and ensure that no stray screws remain inside your
computer. 2. Connect any external devices, peripherals, or cables you removed
before working on your computer. 3. Replace any media cards, discs, or any
other parts that you removed before working on your computer. 4. Connect your
computer and all attached devices to their electrical outlets. 5. Turn on your
computer.
BitLocker
CAUTION: If BitLocker is not suspended before updating the BIOS, the next time
you reboot the system it will not recognize the BitLocker key. You will then
be prompted to enter the recovery key to progress, and the system will ask for
the recovery key on each reboot. If the recovery key is not known, this can
result in data loss or an unnecessary operating system reinstall. For more
information about this subject, see Knowledge Article: updating the BIOS on
Dell systems with BitLocker enabled. The installation of the following
components triggers BitLocker: Hard disk drive or solid-state drive System
board
Recommended tools
The procedures in this document may require the following tools:
Working inside your computer
35
Phillips screwdriver #1 Plastic scribe
Screw list
NOTE: When removing screws from a component, it is recommended to note the
screw type, the quantity of screws, and then place them in a screw storage
box. This is to ensure that the correct number of screws and correct screw
type is restored when the component is replaced.
NOTE: Some computers have magnetic surfaces. Ensure that the screws are not
left attached to such surfaces when replacing a component.
NOTE: Screw color may vary with the configuration ordered.
Table 22. Screw list Component Graphics-card shield
Screw type M3x5
Quantity 2
Screw image
Graphics card
M2.5×5
2
Captive
4
Graphics-card fan
M3x5
2
System-board shield
M3x5
6
Wireless card
M2x3.5
1
M.2 2230/2280 solid-state
M2x3.5
1
drive in M.2 slot 0
M.2 2230/2280 solid-state
M2x3.5
1
drive in M.2 slot 1
I/O cover
M3x5
2
Bottom cover
M3x5
3
Retractable-camera assembly M3x5
4
Fan
M3x5
3
36
Working inside your computer
Table 22. Screw list (continued)
Component I/O bracket
Screw type M3x5
Heat sink
Captive
Quantity 2
5
Screw image
Power-supply unit
M3x5
3
Power-supply connector cable M3x5
2
bracket
Power-supply fan
M3x5
2
System board
M3x5
7
M3x12
1
Power-button and I/O board M3x5
3
shield
Power-button and I/O board M3x5
2
Audio board shield
M3x5
3
Audio board
M3x5
2
Major components of your OptiPlex All-in-One Plus 7420
The following image shows the major components of your OptiPlex All-in-One
Plus 7420.
Working inside your computer
37
Figure 14. Major components of your OptiPlex All-in-One Plus 7420
1. Stand 2. Bottom cover 3. Antenna modules 4. Heat sink 5. Processor 6. Fan
7. M.2 2280 solid-state drive 8. Memory module 9. M.2 2230 solid-state drive
10. Wireless card 11. Audio board 12. I/O bracket 13. Power-button and I/O
board 14. Middle frame 15. I/O cover 16. Display base 17. Display panel 18.
Graphics card
38
Working inside your computer
19. Speakers 20. Power-supply unit (PSU) 21. Fan shroud 22. Coin-cell battery
23. System board 24. System-board shield 25. Retractable-camera assembly 26.
Power-supply fan 27. Back cover
NOTE: Dell provides a list of components and their part numbers for the
original configuration purchased. These parts are available according to
warranty coverage purchased by the customer. Contact your Dell sales
representative for purchase options.
Working inside your computer
39
5
Removing and installing Customer Replaceable Units (CRUs)
The replaceable components in this chapter are Customer Replaceable Units
(CRUs). CAUTION: Customers can replace only the Customer Replaceable Units
(CRUs) following the safety precautions and replacement procedures. NOTE: The
images in this document may differ from your computer depending on the
configuration you ordered.
Stand
Removing the stand
Prerequisites 1. Follow the procedure in Before working inside your computer.
About this task NOTE: Depending on the stand installed on your computer, refer
to the corresponding image shown in the procedure.
The following images indicate the location of the stand and provide a visual
representation of the removal procedure.
Figure 15. Removing the Height Adjustable Stand (HAS)
40
Removing and installing Customer Replaceable Units (CRUs)
Figure 16. Removing the Fixed Stand
Steps 1. Place the display-assembly base on a clean and flat surface. 2. Press
and hold down on the tab that secures the stand to the display-assembly base.
3. Slide and lift the stand off the display-assembly base.
Installing the stand
Prerequisites If you are replacing a component, remove the existing component
before performing the installation process.
About this task NOTE: Depending on the stand you are installing onto your
computer, refer to the corresponding image shown in the procedure.
The following images indicate the location of the stand and provide a visual
representation of the installation procedure.
Removing and installing Customer Replaceable Units (CRUs)
41
Figure 17. Installing the Height Adjustable Stand (HAS)
Figure 18. Installing the Fixed Stand
Steps 1. At an angle, align the tabs on the stand with the slots on the
display-assembly base. 2. Slide the tabs on the stand into the slots on the
display-assembly base.
42
Removing and installing Customer Replaceable Units (CRUs)
Next steps 1. Follow the procedure in After working inside your computer.
Back cover
Removing the back cover
Prerequisites 1. Follow the procedure in Before working inside your computer.
2. Remove the stand.
About this task NOTE: Before removing the base cover, ensure that there is no
SD card installed in the SD-card slot on your computer.
The following image indicates the location of the back cover and provides a
visual representation of the removal procedure.
Figure 19. Removing the back cover
Steps 1. Press down on the tab that secures the back cover to the display-
assembly base. 2. Slide and lift the back cover off the display-assembly base.
Installing the back cover
Prerequisites If you are replacing a component, remove the existing component
before performing the installation process.
Removing and installing Customer Replaceable Units (CRUs)
43
About this task The following image indicates the location of the back cover and provides a visual representation of the installation procedure.
Figure 20. Installing the back cover
Steps 1. Align the back cover to the display-assembly base. 2. Place and slide
the back cover into place on the display assembly base.
Next steps 1. Install the stand. 2. Follow the procedure in After working
inside your computer.
Memory
Removing the memory
Prerequisites 1. Follow the procedure in Before working inside your computer.
2. Remove the stand. 3. Remove the back cover.
About this task The following image indicates the location of the memory and
provides a visual representation of the removal procedure.
44
Removing and installing Customer Replaceable Units (CRUs)
Figure 21. Removing the memory
Steps 1. Using the tab on the DIMM door, pry open and lift the DIMM door on
the system-board shield to access the memory slots. 2. Using your fingertips,
carefully spread apart the securing clips on each end of the memory-module
slot until the memory
module pops out. 3. Remove the memory module from the memory-module slot.
NOTE: Repeat steps 2 to 3 for each memory module installed on your computer.
Installing the memory
Prerequisites If you are replacing a component, remove the existing component
before performing the installation process.
About this task The following image indicates the location of the memory and
provides a visual representation of the installation procedure.
Removing and installing Customer Replaceable Units (CRUs)
45
Figure 22. Installing the memory
Steps 1. Align the notch on the memory module with the tab on the memory-
module slot. 2. Slide the memory module firmly into the slot at an angle and
press down on the memory module down until it clicks into
place. NOTE: If you do not hear the click, remove the memory module and
reinstall it.
NOTE: Repeat steps 1 to 2 for each memory module to be installed on your
computer.
3. Close the DIMM door and press it into place, securing it.
Next steps 1. Install the back cover. 2. Install the stand. 3. Follow the
procedure in After working inside your computer.
46
Removing and installing Customer Replaceable Units (CRUs)
Graphics card
Removing the graphics card
Prerequisites 1. Follow the procedure in Before working inside your computer.
2. Remove the stand. 3. Remove the back cover.
About this task The following image indicates the location of the graphics
card and provides a visual representation of the removal procedure.
Removing and installing Customer Replaceable Units (CRUs)
47
Figure 23. Removing the graphics card
Steps 1. Remove the two screws (M3x5) that secure the graphics-card assembly
to the display-assembly base. 2. Slide and lift the graphics-card assembly off
the display-assembly base.
48
Removing and installing Customer Replaceable Units (CRUs)
3. Using the tab on the DGFX door, pry open and lift the DGFX door on the
graphics-card shield to access the graphics-card fan connector.
4. Disconnect the graphics-card fan from the graphics card. 5. Flip over the
graphics-card assembly. 6. Remove the two screws (M2.5×5) that secure the
graphics card to the graphics-card assembly. 7. Loosen the four captive screws
that secure the graphics card to the graphics-card assembly. 8. Lift the
graphics card off the graphics-card assembly. 9. Remove the two screws (M3x5)
that secure the graphics-card fan to the graphics-card shield. 10. Lift the
graphics-card fan off the graphics-card shield.
Installing the graphics card
Prerequisites If you are replacing a component, remove the existing component
before performing the installation process.
About this task The following image indicates the location of the graphics
card and provides a visual representation of the installation procedure.
Removing and installing Customer Replaceable Units (CRUs)
49
Figure 24. Installing the graphics card
Steps 1. Align the notch on the memory module with the tab on the memory-
module slot 2. Slide the memory module firmly into the slot at an angle and
press down on the memory module down until it clicks into
place.
50
Removing and installing Customer Replaceable Units (CRUs)
NOTE: If you do not hear the click, remove the memory module and reinstall it
again.
NOTE: Repeat steps 1 to 2 for each memory module to be installed on your
computer.
3. Close the DIMM door and press it into place, securing it.
Next steps 1. Install the back cover. 2. Install the stand. 3. Follow the
procedure in After working inside your computer.
System-board shield
Removing the system-board shield
Prerequisites 1. Follow the procedure in Before working inside your computer.
2. Remove the stand. 3. Remove the back cover.
About this task The following image indicates the location of the system-board
shield and provides a visual representation of the removal procedure.
Removing and installing Customer Replaceable Units (CRUs)
51
Figure 25. Removing the system-board shield
Steps 1. Remove the six screws (M3x5) that secure the system-board shield to
the display-assembly base. 2. Lift the system-board shield off the display-
assembly base.
Installing the system-board shield
Prerequisites If you are replacing a component, remove the existing component
before performing the installation process.
About this task The following image indicates the location of the system-board
shield and provides a visual representation of the installation procedure.
52
Removing and installing Customer Replaceable Units (CRUs)
Figure 26. Installing the system-board shield
Steps 1. Place the system-board on the display-assembly base. 2. Align the
screw holes on the system-board shield with the screw holes on the display-
assembly base. 3. Replace the six screws (M3x5) that secure the system-board
shield to the display-assembly base.
Next steps 1. Install the back cover. 2. Install the stand. 3. Follow the
procedure in After working inside your computer.
Wireless card
Removing the wireless card
Prerequisites 1. Follow the procedure in Before working inside your computer.
2. Remove the stand. 3. Remove the back cover. 4. Remove the system-board
shield.
Removing and installing Customer Replaceable Units (CRUs)
53
About this task The following image indicates the location of the wireless card and provides a visual representation of the removal procedure.
Figure 27. Removing the wireless card
Steps 1. Remove the screw (M2x3.5) that secures the wireless-card bracket to
the wireless card. 2. Lift the wireless-card bracket off the wireless card. 3.
Disconnect the antenna cables from the wireless card. 4. Slide and lift the
wireless card from the wireless-card slot (M.2 WLAN).
Installing the wireless card
Prerequisites If you are replacing a component, remove the existing component
before performing the installation process.
About this task The following image indicates the location of the wireless
card and provides a visual representation of the installation procedure.
54
Removing and installing Customer Replaceable Units (CRUs)
Figure 28. Installing the wireless card
Steps 1. Connect the antenna cables to the wireless card.
Table 23. Antenna-cable color scheme
Connector on the wireless card
Antenna-cable color Silkscreen marking
Main
White
MAIN
Auxiliary
Black
AUX
(white triangle) (black triangle)
2. Place the wireless-card bracket on the wireless card. 3. Align the notch on the wireless card with the tab on the wireless-card slot (M.2 WLAN). 4. Slide the wireless card at an angle into the wireless-card slot (M.2 WLAN). 5. Replace the screw (M2x3.5) that secures the wireless-card bracket to the wireless card.
Next steps
1. Install the system-board shield. 2. Install the back cover.
Removing and installing Customer Replaceable Units (CRUs)
55
3. Install the stand. 4. Follow the procedure in After working inside your
computer.
Solid-state drive in M.2 slot 0
Removing the M.2 2230 solid-state drive in M.2 slot 0
Prerequisites 1. Follow the procedure in Before working inside your computer.
2. Remove the stand. 3. Remove the back cover. 4. Remove the system-board
shield.
About this task NOTE: Depending on the configuration ordered, your computer
may have up to two M.2 2230 or 2280 solid-state drives installed in the solid-
state drive slots on the system board. NOTE: This procedure is applicable for
computers where an M.2 2230 solid-state drive is installed in the solid-state
drive slot (M.2 PCIe SSD 0) on the system board.
The following image indicates the location of the M.2 2230 solid-state drive
in M.2 slot 0 and provides a visual representation of the removal procedure.
Figure 29. Removing the M.2 2230 solid-state drive in M.2 slot 0
Steps 1. Remove the screw (M2x3.5) that secures the M.2 2230 solid-state drive
to the system board. 2. Slide and lift the M.2 2230 solid-state drive from the
solid-state drive slot (M.2 PCIe SSD 0) on the system board.
56
Removing and installing Customer Replaceable Units (CRUs)
Installing the M.2 2230 solid-state drive in M.2 slot 0
Prerequisites If you are replacing a component, remove the existing component
before performing the installation process.
About this task NOTE: This procedure is only applicable if you are installing
an M.2 2230 solid-state drive into the solid-state drive slot (M.2 PCIe SSD 0)
on the system board. NOTE: Ensure that the M.2 screw mount is in the proper
location to install the M.2 2230 solid-state drive, refer to Location of the
screw mount on M.2 slot 0.
The following image indicates the location of the M.2 2230 solid-state drive
in M.2 slot 0 and provides a visual representation of the installation
procedure.
Figure 30. Installing the M.2 2230 solid-state drive in M.2 slot 0
Steps 1. Align the notch on the M.2 2230 solid-state drive with the tab on the
solid-state drive slot (M.2 PCIe SSD 0). 2. Slide the M.2 2230 solid-state
drive into the solid-state drive slot (M.2 PCIe SSD 0) on the system board. 3.
Replace the screw (M2x3.5) that secures the M.2 2230 solid-state drive to the
system board.
Next steps 1. Install the system-board shield. 2. Install the back cover. 3.
Install the stand. 4. Follow the procedure in After working inside your
computer.
Removing the M.2 2280 solid-state drive in M.2 slot 0
Prerequisites 1. Follow the procedure in Before working inside your computer.
Removing and installing Customer Replaceable Units (CRUs)
57
2. Remove the stand. 3. Remove the back cover. 4. Remove the system-board
shield.
About this task NOTE: Depending on the configuration ordered, your computer
may have up to two M.2 2230 or 2280 solid-state drives installed in the solid-
state drive slots on the system board.
NOTE: This procedure is applicable for computers where an M.2 2280 solid-state
drive is installed in the solid-state drive slot (M.2 PCIe SSD 0) on the
system board.
The following image indicates the location of the M.2 2280 solid-state drive
in M.2 slot 0 and provides a visual representation of the removal procedure.
Figure 31. Removing the M.2 2280 solid-state drive in M.2 slot 0
Steps 1. Remove the screw (M2x3.5) that secures the M.2 2280 solid-state drive
to the system board. 2. Slide and lift the M.2 2280 solid-state drive from the
solid-state drive slot (M.2 PCIe SSD 0) on the system board.
Installing the M.2 2280 solid-state drive in M.2 slot 0
Prerequisites If you are replacing a component, remove the existing component
before performing the installation process.
About this task NOTE: This procedure is only applicable if you are installing
an M.2 2280 solid-state drive into the solid-state drive slot (M.2 PCIe SSD 0)
on the system board. NOTE: Ensure that the M.2 screw mount is in the proper
location to install the M.2 2280 solid-state drive, refer to Location of the
screw mount on M.2 slot 0.
The following image indicates the location of the M.2 2280 solid-state drive
in M.2 slot 0 and provides a visual representation of the installation
procedure.
58
Removing and installing Customer Replaceable Units (CRUs)
Figure 32. Installing the M.2 2280 solid-state drive in M.2 slot 0
Steps 1. Align the notch on the M.2 2280 solid-state drive with the tab on the
solid-state drive slot (M.2 PCIe SSD 0). 2. Slide the M.2 2280 solid-state
drive into the solid-state drive slot (M.2 PCIe SSD 0) on the system board. 3.
Replace the screw (M2x3.5) that secures the M.2 2280 solid-state drive to the
system board.
Next steps 1. Install the system-board shield. 2. Install the back cover. 3.
Install the stand. 4. Follow the procedure in After working inside your
computer.
Location of the screw mount on M.2 slot 0
Prerequisites To install an M.2 solid-state drive of a different form factor
on M.2 slot 0, the location of the screw mount on M.2 slot 0 has to be changed
in order to install the M.2 solid-state drive of a different form factor.
About this task NOTE: This procedure only applies to the screw mount located
on M.2 slot 0.
The following images indicates the location of the screw mount on M.2 slot 0
and provides a visual representation of the procedure to change the position
of the screw mount.
Removing and installing Customer Replaceable Units (CRUs)
59
Figure 33. Moving the solid-state screw mount on M.2 slot 0
Steps 1. Remove the screw mount on the system board. 2. Install the screw
mount on the system board.
Next steps 1. Install the M.2 2230 solid-state drive in slot 0 or the M.2 2280
solid-state drive in slot 0, whichever is applicable. 2. Install the system-
board shield. 3. Install the back cover. 4. Install the stand. 5. Follow the
procedure in After working inside your computer.
Solid-state drive in M.2 slot 1
Removing the M.2 2230 solid-state drive in M.2 slot 1
Prerequisites 1. Follow the procedure in Before working inside your computer.
2. Remove the stand. 3. Remove the back cover. 4. Remove the system-board
shield. 5. Remove the I/O cover.
About this task NOTE: Depending on the configuration ordered, your computer
may have up to two M.2 2230 or 2280 solid-state drives installed in the solid-
state drive slots on the system board. NOTE: This procedure is applicable for
computers where an M.2 2230 solid-state drive is installed in the solid-state
drive slot (M.2 PCIe SSD 1) on the system board.
The following image indicates the location of the M.2 2230 solid-state drive
in M.2 slot 1 and provides a visual representation of the removal procedure.
60
Removing and installing Customer Replaceable Units (CRUs)
Figure 34. Removing the M.2 2230 solid-state drive in M.2 slot 1
Steps 1. Remove the screw (M2x3.5) that secures the M.2 2230 solid-state drive
to the system board. 2. Slide and lift the M.2 2230 solid-state drive from the
solid-state drive slot (M.2 PCIe SSD 1) on the system board.
Installing the M.2 2230 solid-state drive in M.2 slot 1
Prerequisites If you are replacing a component, remove the existing component
before performing the installation process.
About this task NOTE: This procedure is only applicable if you are installing
an M.2 2230 solid-state drive into the solid-state drive slot (M.2 PCIe SSD 1)
on the system board. NOTE: Ensure that the M.2 screw mount is in the proper
location to install the M.2 2230 solid-state drive, refer to Location of the
screw mount on M.2 slot 1.
The following image indicates the location of the M.2 2230 solid-state drive
in M.2 slot 1 and provides a visual representation of the installation
procedure.
Removing and installing Customer Replaceable Units (CRUs)
61
Figure 35. Installing the M.2 2230 solid-state drive in M.2 slot 1
Steps 1. Align the notch on the M.2 2230 solid-state drive with the tab on the
solid-state drive slot (M.2 PCIe SSD 1). 2. Slide the M.2 2230 solid-state
drive into the solid-state drive slot (M.2 PCIe SSD 1) on the system board. 3.
Replace the screw (M2x3.5) that secures the M.2 2230 solid-state drive to the
system board.
Next steps 1. Install the I/O cover. 2. Install the system-board shield. 3.
Install the back cover. 4. Install the stand. 5. Follow the procedure in After
working inside your computer.
Removing the M.2 2280 solid-state drive in M.2 slot 1
Prerequisites 1. Follow the procedure in Before working inside your computer.
2. Remove the stand. 3. Remove the back cover. 4. Remove the system-board
shield. 5. Remove the I/O cover.
About this task NOTE: Depending on the configuration ordered, your computer
may have up to two M.2 2230 or 2280 solid-state drives installed in the solid-
state drive slots on the system board.
NOTE: This procedure is applicable for computers where an M.2 2280 solid-state
drive is installed in the solid-state drive slot (M.2 PCIe SSD 1) on the
system board. The following image indicates the location of the M.2 2280
solid-state drive in M.2 slot 1 and provides a visual representation of the
removal procedure.
62
Removing and installing Customer Replaceable Units (CRUs)
Figure 36. Removing the M.2 2280 solid-state drive in M.2 slot 1
Steps 1. Remove the screw (M2x3.5) that secures the M.2 2280 solid-state drive
to the system board. 2. Slide and lift the M.2 2280 solid-state drive from the
solid-state drive slot (M.2 PCIe SSD 1) on the system board.
Installing the M.2 2280 solid-state drive in M.2 slot 1
Prerequisites If you are replacing a component, remove the existing component
before performing the installation process.
About this task NOTE: This procedure is only applicable if you are installing
an M.2 2280 solid-state drive into the solid-state drive slot (M.2 PCIe SSD 1)
on the system board. NOTE: Ensure that the M.2 screw mount is in the proper
location to install the M.2 2280 solid-state drive, refer to Location of the
screw mount on M.2 slot 1.
The following image indicates the location of the M.2 2280 solid-state drive
in M.2 slot 1 and provides a visual representation of the installation
procedure.
Removing and installing Customer Replaceable Units (CRUs)
63
Figure 37. Installing the M.2 2280 solid-state drive in M.2 slot 1
Steps 1. Align the notch on the M.2 2280 solid-state drive with the tab on the
solid-state drive slot (M.2 PCIe SSD 1). 2. Slide the M.2 2280 solid-state
drive into the solid-state drive slot (M.2 PCIe SSD 1) on the system board. 3.
Replace the screw (M2x3.5) that secures the M.2 2280 solid-state drive to the
system board.
Next steps 1. Install the I/O cover. 2. Install the system-board shield. 3.
Install the back cover. 4. Install the stand. 5. Follow the procedure in After
working inside your computer.
Location of the screw mount on M.2 slot 1
Prerequisites To install an M.2 solid-state drive of a different form factor
on M.2 slot 1, the location of the screw mount on M.2 slot 1 has to be changed
in order to install the M.2 solid-state drive of a different form factor.
About this task NOTE: This procedure only applies to the screw mount located
on M.2 slot 1.
The following image indicates the location of the screw mount on M.2 slot 1
and provides a visual representation of the procedure to change the position
of the screw mount.
64
Removing and installing Customer Replaceable Units (CRUs)
Figure 38. Moving the solid-state screw mount on M.2 slot 1
Steps 1. Remove the screw mount on the system board. 2. Install the screw
mount on the system board.
Next steps 1. Install the M.2 2230 solid-state drive in slot 1 or the M.2 2280
solid-state drive in slot 1, whichever is applicable. 2. Install the I/O
cover. 3. Install the system-board shield. 4. Install the back cover. 5.
Install the stand. 6. Follow the procedure in After working inside your
computer.
Coin-cell battery
Removing the coin-cell battery
Prerequisites 1. Follow the procedure in Before working inside your computer.
2. Remove the stand. 3. Remove the back cover. 4. Remove the system-board
shield.
About this task The following image indicates the location of the coin-cell
battery and provides a visual representation of the removal procedure.
Removing and installing Customer Replaceable Units (CRUs)
65
Figure 39. Removing the coin-cell battery
Steps 1. Push the release lever on the coin-cell battery socket (RTC) to
release the coin-cell battery out of the socket. 2. Lift the coin-cell battery
from the coin-cell battery socket.
Installing the coin-cell battery
Prerequisites If you are replacing a component, remove the existing component
before performing the installation process.
About this task The following image indicates the location of the coin-cell
battery and provides a visual representation of the installation procedure.
66
Removing and installing Customer Replaceable Units (CRUs)
Figure 40. Installing the coin-cell battery
Steps With the positive side (+) facing up, insert the coin-cell battery into
the battery socket (RTC) on the system board and snap the battery into place.
Next steps 1. Install the system-board shield. 2. Install the back cover. 3.
Install the stand. 4. Follow the procedure in After working inside your
computer.
I/O cover
Removing the I/O cover
Prerequisites 1. Follow the procedure in Before working inside your computer.
2. Remove the stand. 3. Remove the back cover. 4. Remove the system-board
shield.
About this task The following image indicates the location of the I/O cover
and provides a visual representation of the removal procedure.
Removing and installing Customer Replaceable Units (CRUs)
67
Figure 41. Removing the I/O cover
Steps 1. Remove the two screws (M3x5) that secure the I/O cover to the
display-assembly base. 2. Lift the I/O cover off the display-assembly base.
Installing the I/O cover
Prerequisites If you are replacing a component, remove the existing component
before performing the installation process.
About this task The following image indicates the location of the I/O cover
and provides a visual representation of the installation procedure.
68
Removing and installing Customer Replaceable Units (CRUs)
Figure 42. Installing the I/O cover
Steps 1. Place the I/O cover on the display-assembly base. 2. Align the I/O
slots with the I/O ports and the screw holes on the I/O cover with the screw
holes on the display-assembly
base. 3. Replace the two screws (M3x5) that secure the I/O cover to the
display-assembly base.
Next steps 1. Install the system-board shield. 2. Install the back cover. 3.
Install the stand. 4. Follow the procedure in After working inside your
computer.
Bottom cover
Removing the bottom cover
Prerequisites 1. Follow the procedure in Before working inside your computer.
2. Remove the stand. 3. Remove the back cover. 4. Remove the system-board
shield. 5. Remove the I/O cover.
About this task The following image indicates the location of the bottom cover
and provides a visual representation of the removal procedure.
Removing and installing Customer Replaceable Units (CRUs)
69
Figure 43. Removing the bottom cover
Steps 1. Remove the three screws (M3x5) that secure the bottom cover to the
display-assembly base. 2. Lift the bottom cover off the display-assembly base.
Installing the bottom cover
Prerequisites If you are replacing a component, remove the existing component
before performing the installation process.
About this task The following image indicates the location of the bottom cover
and provides a visual representation of the installation procedure.
70
Removing and installing Customer Replaceable Units (CRUs)
Figure 44. Installing the bottom cover
Steps 1. Place and align the bottom cover with the display-assembly base. 2.
Align the screw holes on the bottom cover with the screw holes on the display-
assembly base. 3. Replace the three screws (M3x5) that secure the bottom cover
to the display-assembly base.
Next steps 1. Install the I/O cover. 2. Install the system-board shield. 3.
Install the back cover. 4. Install the stand. 5. Follow the procedure in After
working inside your computer.
Retractable-camera assembly
Removing the retractable-camera assembly
Prerequisites 1. Follow the procedure in Before working inside your computer.
2. Remove the stand. 3. Remove the back cover. 4. Remove the system-board
shield.
About this task NOTE: The retractable-camera assembly consists of the
following components: camera microphones
The following image indicates the location of the retractable-camera assembly
and provides a visual representation of the removal procedure.
Removing and installing Customer Replaceable Units (CRUs)
71
Figure 45. Removing the retractable-camera assembly
Steps 1. Remove the two screws (M3x5) that secure the camera-assembly bracket
to the display-assembly base. 2. Lift the camera-assembly bracket off the
display-assembly base. 3. Using the pull tab, disconnect the camera cable from
its connector (WEBCAM) on the system board. 4. Remove the two screws (M3x5)
that secure the retractable-camera assembly to the display-assembly base. 5.
Lift and slide the retractable-camera assembly from its slot and under the
heat sink and remove the retractable-camera
assembly from the display-assembly base.
Installing the retractable-camera assembly
Prerequisites If you are replacing a component, remove the existing component
before performing the installation process.
About this task The following image indicates the location of the retractable-
camera assembly and provides a visual representation of the installation
procedure.
72
Removing and installing Customer Replaceable Units (CRUs)
Figure 46. Installing the retractable-camera assembly
Steps 1. Slide the retractable-camera assembly under the heat sink into its
slot on the display-assembly base. 2. Align the screw holes on the
retractable-camera assembly with the screw holes on the display-assembly base.
3. Replace the two screws (M3x5) that secure the retractable-camera assembly
to the display-assembly base. 4. Connect the camera cable to its connector
(WEBCAM) on the system board. 5. Place the camera-assembly bracket over
retractable-camera assembly. 6. Align the screw holes on the camera-assembly
bracket with the screw holes on the display-assembly base. 7. Replace the two
screws (M3x5) that secure the camera-assembly bracket to the display-assembly
base.
Next steps 1. Install the system-board shield. 2. Install the back cover. 3.
Install the stand. 4. Follow the procedure in After working inside your
computer.
Removing and installing Customer Replaceable Units (CRUs)
73
Fan
Removing the fan
Prerequisites 1. Follow the procedure in Before working inside your computer.
2. Remove the stand. 3. Remove the back cover. 4. Remove the system-board
shield.
About this task The following image indicates the location of the fan and
provides a visual representation of the removal procedure.
Figure 47. Removing the fan
Steps 1. Press and hold the securing clip and disconnect the processor-power
cable from its connector (ATX CPU) on the system
board. 2. Remove the processor-power cable from the routing guide on the
display-assembly base. 3. Lift the processor-power cable from the system board
to access the fan cable. 4. Remove the three screws (M3x5) that secure the fan
to the display-assembly base. 5. Disconnect the fan cable from its connector
(CPU FAN) on the system board. 6. Lift the fan off the display-assembly base.
74
Removing and installing Customer Replaceable Units (CRUs)
Installing the fan
Prerequisites If you are replacing a component, remove the existing component
before performing the installation process.
About this task The following image indicates the location of the fan and
provides a visual representation of the installation procedure.
Figure 48. Installing the fan
Steps 1. Place the fan on the display-assembly base. 2. Align the screw holes
on the fan with the screw holes on the display-assembly base. 3. Replace the
three screws (M3x5) that secure the fan to the display-assembly base. 4.
Connect the fan cable to its connector (CPU FAN) on the system board. 5. Route
the processor-power cable through the routing guide on the display-assembly
base. 6. Connect the processor-power cable to its connector (ATX CPU) on the
system board.
Next steps 1. Install the system-board shield. 2. Install the back cover. 3.
Install the stand. 4. Follow the procedure in After working inside your
computer.
Removing and installing Customer Replaceable Units (CRUs)
75
Power-supply unit
Removing the power-supply unit
Prerequisites 1. Follow the procedure in Before working inside your computer.
2. Remove the stand. 3. Remove the back cover. 4. Remove the system-board
shield. 5. Remove the I/O cover.
About this task The following image indicates the location of the power-supply
unit and provides a visual representation of the removal procedure.
Figure 49. Removing the power-supply unit
76
Removing and installing Customer Replaceable Units (CRUs)
Steps 1. Press and hold the securing clip and disconnect the processor-power
cable from its connector (ATX CPU) on the system
board. 2. Disconnect the control-signal cable from its connector (CTRL) on the
system board. 3. Disconnect the system-board power cable from its connector
(ATX SYS) on the system board. 4. Remove the three screws (M3x5) that secure
the power-supply unit to the display-assembly base. 5. Remove the two screws
(M3x5) that secure the power-supply connector cable bracket to the display-
assembly base. 6. Lift the power-supply unit, its cables, and the power-supply
unit connector off the display-assembly base.
Installing the power-supply unit
Prerequisites If you are replacing a component, remove the existing component
before performing the installation process.
About this task The following image indicates the location of the power-supply
unit and provides a visual representation of the installation procedure.
Figure 50. Installing the power-supply unit
Removing and installing Customer Replaceable Units (CRUs)
77
Steps 1. Place the power-supply unit and the power-supply unit connector on
the display-assembly base. 2. Align the screw holes on the power-supply unit
with the screw holes on the display-assembly base. 3. Replace the three screws
(M3x5) that secure the power-supply unit to the display-assembly base. 4.
Align the screw holes on the power-supply connecty bracket with the screw
holes on the display-assembly base. 5. Replace the two screws (M3x5) that
secure the power-supply connector bracket to the display-assembly base. 6.
Connect the processor-power cable to its connector (ATX CPU) on the system
board. 7. Connect the control-signal cable to its connector (CTRL) on the
system board. 8. Connect the system-board power cable to its connector (ATX
SYS) on the system board.
Next steps 1. Install the I/O cover. 2. Install the system-board shield. 3.
Install the back cover. 4. Install the stand. 5. Follow the procedure in After
working inside your computer.
78
Removing and installing Customer Replaceable Units (CRUs)
6
Removing and installing Field Replaceable Units (FRUs)
The replaceable components in this chapter are Field Replaceable Units (FRUs).
CAUTION: The information in this removing and installing FRU’s section is
intended for authorized service technicians only. CAUTION: To avoid any
potential damage to the component or loss of data, ensure that an authorized
service technician replaces the Field Replaceable Units (FRUs). CAUTION: Dell
Technologies recommends that this set of repairs, if needed, to be conducted
by trained technical repair specialists. CAUTION: As a reminder, your warranty
does not cover damages that may occur during FRU repairs that are not
authorized by Dell Technologies. NOTE: The images in this document may differ
from your computer depending on the configuration you ordered.
Power-supply fan
Removing the power-supply fan
Prerequisites 1. Follow the procedure in Before working inside your computer.
2. Remove the stand. 3. Remove the back cover. 4. Remove the system-board
shield. 5. Remove the I/O cover. 6. Remove the power-supply unit.
About this task The following images indicate the location of the power-supply
fan and provide a visual representation of the removal procedure.
Removing and installing Field Replaceable Units (FRUs)
79
Figure 51. Removing the power-supply fan
80
Removing and installing Field Replaceable Units (FRUs)
Figure 52. Removing the power-supply fan
Removing and installing Field Replaceable Units (FRUs)
81
Figure 53. Removing the power-supply fan
Steps 1. Disconnect the power-supply fan cable from its connector (FAN SYS) on
the system board. 2. Remove the power-supply fan cable from the routing guides
on the display-assembly base. 3. Remove the audio-board cable from the routing
guides on the display-assembly base and the power-supply fan. 4. Remove the
antenna cables from the routing guides on the display-assembly base and the
power-supply fan. 5. Remove the two screws (M3x5) that secure the power-supply
fan to the display-assembly base. 6. Lift the power-supply fan off the
display-assembly base.
Installing the power-supply fan
Prerequisites If you are replacing a component, remove the existing component
before performing the installation process.
About this task The following images indicate the location of the power-supply
fan and provide a visual representation of the installation procedure.
82
Removing and installing Field Replaceable Units (FRUs)
Figure 54. Installing the power-supply fan
Removing and installing Field Replaceable Units (FRUs)
83
Figure 55. Installing the power-supply fan
Figure 56. Installing the power-supply fan
84
Removing and installing Field Replaceable Units (FRUs)
Steps 1. Place the power-supply fan on the display-assembly base. 2. Align the
screw holes on the power-supply fan with the screw holes on the display-
assembly base. 3. Replace the two screws (M3x5) that secure the power-supply
fan to the display-assembly base. 4. Route the antenna cables through the
routing guides on the display-assembly base and the power-supply fan. 5. Route
the audio-board cable through the routing guides on the display-assembly base
and the power-supply fan. 6. Route the power-supply fan cable through the
routing guide on the display-assembly base. 7. Connect the power-supply fan
cable to its connector (FAN SYS) on the system board.
Next steps 1. Install the power-supply unit. 2. Install the I/O cover. 3.
Install the system-board shield. 4. Install the back cover. 5. Install the
stand. 6. Follow the procedure in After working inside your computer.
I/O bracket
Removing the I/O bracket
Prerequisites 1. Follow the procedure in Before working inside your computer.
2. Remove the stand. 3. Remove the back cover. 4. Remove the system-board
shield. 5. Remove the I/O cover. 6. Remove the bottom cover.
About this task The following image indicates the location of the I/O bracket
and provides a visual representation of the removal procedure.
Removing and installing Field Replaceable Units (FRUs)
85
Figure 57. Removing the I/O bracket
Steps 1. Remove the two screws (M3x5) that secure the power-supply cable
connector bracket to the display-assembly base. 2. Lift the power-supply cable
connector bracket off the display-assembly base. 3. Remove the two screws
(M3x5) that secure the I/O bracket to the display-assembly base. 4. Lift the
I/O bracket off the display-assembly base.
Installing the I/O bracket
Prerequisites If you are replacing a component, remove the existing component
before performing the installation process.
About this task The following image indicates the location of the I/O bracket
and provides a visual representation of the installation procedure.
86
Removing and installing Field Replaceable Units (FRUs)
Figure 58. Installing the I/O bracket
Steps 1. Place and align the I/O bracket with the display-assembly base. 2.
Align the I/O slots to the I/O ports and the screw holes on the I/O bracket
with the screw holes on the display-assembly
base. 3. Replace the two screws (M3x5) that secure the I/O cover to the
display-assembly base. 4. Place the power-supply connector cable bracket on
the display-assembly base. 5. Align the power-supply cable connector bracket
screw holes with the screw holes on the display-assembly base. 6. Replace the
two screws (M3x5) that secure the power-supply cable connector bracket to the
display-assembly base.
Next steps 1. Install the bottom cover. 2. Install the I/O cover. 3. Install
the system-board shield. 4. Install the back cover. 5. Install the stand. 6.
Follow the procedure in After working inside your computer.
Speakers
Removing the speakers
CAUTION: The information in this removal section is intended for authorized
service technicians only.
Prerequisites 1. Follow the procedure in Before working inside your computer.
2. Remove the stand. 3. Remove the back cover. 4. Remove the system-board
shield.
Removing and installing Field Replaceable Units (FRUs)
87
5. Remove the I/O cover. 6. Remove the bottom cover.
About this task The following image indicates the location of the speakers and
provides a visual representation of the removal procedure.
Figure 59. Removing the speakers
Steps 1. Disconnect the speaker cable from its connector (INT SPKR) on the
audio board. 2. Remove the speaker cable from its routing guides on the
display-assembly base. 3. Lift the speakers and its cable off the display-
assembly base.
Installing the speakers
CAUTION: The information in this installation section is intended for
authorized service technicians only.
Prerequisites If you are replacing a component, remove the existing component
before performing the installation process.
About this task The following image indicates the location of the speakers and
provides a visual representation of the installation procedure.
88
Removing and installing Field Replaceable Units (FRUs)
Figure 60. Installing the speakers
Steps 1. Insert the speakers into their slots on the display-assembly base. 2.
Route the speaker cable through the routing guides on the display-assembly
base. 3. Connect the speaker cable to its connector (INT SPKR) on the audio
board.
Next steps 1. Install the bottom cover. 2. Install the I/O cover. 3. Install
the system-board shield. 4. Install the back cover. 5. Install the stand. 6.
Follow the procedure in After working inside your computer.
Heat sink
Removing the heat sink
CAUTION: The information in this removal section is intended for authorized
service technicians only.
Prerequisites 1. Follow the procedure in Before working inside your computer.
2. Remove the stand. 3. Remove the back cover. 4. Remove the system-board
shield.
About this task NOTE: The heat sink may become hot during normal operation.
Allow sufficient time for the heat sink to cool before you touch it.
Removing and installing Field Replaceable Units (FRUs)
89
NOTE: For maximum cooling of the processor, do not touch the heat transfer
areas on the heat sink. The oils in your skin can reduce the heat transfer
capability of the thermal grease.
The following image indicates the location of the heat sink and provides a
visual representation of the removal procedure.
Figure 61. Removing the heat sink
Steps 1. In reverse sequential order (5>4>3>2>1) loosen the five captive
screws that secure the heat sink to the system board and
the display-assembly base. 2. Lift the heat sink off the display-assembly
base.
Installing the heat sink
CAUTION: The information in this installation section is intended for
authorized service technicians only.
Prerequisites If you are replacing a component, remove the existing component
before performing the installation process.
About this task NOTE: If either the processor or the fan and heat sink is
replaced, use the thermal grease provided in the kit to ensure optimal thermal
conductivity.
The following image indicates the location of the heat sink and provides a
visual representation of the installation procedure.
90
Removing and installing Field Replaceable Units (FRUs)
Figure 62. Installing the heat sink
Steps 1. Place the heat sink on the system board and the display-assembly
base. 2. Align the screws on the heat sink with the screw holes on the system
board and the display-assembly base. 3. In sequential order (1>2>3>4>5)
tighten the five captive screws that secure the heat sink to the system board
and the
display-assembly base.
Next steps 1. Install the system-board shield. 2. Install the back cover. 3.
Install the stand. 4. Follow the procedure in After working inside your
computer.
Processor
Removing the processor
CAUTION: The information in this removal section is intended for authorized
service technicians only.
Prerequisites 1. Follow the procedure in Before working inside your computer.
2. Remove the stand. 3. Remove the back cover. 4. Remove the system-board
shield. 5. Remove the heat sink.
About this task NOTE: The processor may become hot during normal operation.
Allow sufficient time for the processor to cool before you touch it.
Removing and installing Field Replaceable Units (FRUs)
91
NOTE: For maximum cooling of the processor, do not touch the heat transfer
areas on the processor. The oils in your skin can reduce the heat transfer
capability of the thermal grease.
The following image indicates the location of the processor and provides a
visual representation of the removal procedure.
Figure 63. Removing the processor
Steps 1. Press the release lever down and then push it away from the processor
to release it from the securing tab. 2. Extend the release lever completely
and open the processor cover.
CAUTION: When removing the processor, do not touch any of the pins inside the
socket or allow any objects to fall on the pins in the socket. 3. Gently lift
the processor from the processor socket (CPU).
Installing the processor
CAUTION: The information in this installation section is intended for
authorized service technicians only.
Prerequisites If you are replacing a component, remove the existing component
before performing the installation process.
92
Removing and installing Field Replaceable Units (FRUs)
About this task NOTE: If either the processor or the fan and heat sink is
replaced, use the thermal grease provided in the kit to ensure optimal thermal
conductivity.
The following image indicates the location of the processor and provides a
visual representation of the installation procedure.
Figure 64. Installing the processor
Steps 1. Ensure that the release lever on the processor socket is fully
extended in the open position.
NOTE: The pin-1 corner of the processor has a triangle that aligns with the
triangle on the pin-1 corner on the processor socket. When the processor is
properly seated, all four corners are aligned at the same height. If one or
more corners of the processor is higher than the others, the processor is not
seated properly.
2. Align the notches on the processor with the tabs on the processor socket
and place the processor in the processor socket (CPU). CAUTION: Ensure that
the processor-cover notch is positioned underneath the alignment post.
3. When the processor is fully seated in the socket, pivot the release-lever
down and place it under the tab on the processor cover.
Next steps 1. Install the heat sink. 2. Install the system-board shield.
Removing and installing Field Replaceable Units (FRUs)
93
3. Install the back cover. 4. Install the stand. 5. Follow the procedure in
After working inside your computer.
System board
Removing the system board
CAUTION: The information in this removal section is intended for authorized
service technicians only.
Prerequisites 1. Follow the procedure in Before working inside your computer.
2. Remove the stand. 3. Remove the back cover. 4. Remove the memory. 5. Remove
the graphics card. 6. Remove the system-board shield. 7. Remove the I/O cover.
8. Remove the bottom cover. 9. Remove the I/O bracket. 10. Remove the M.2 2230
solid-state drive in slot 0 or the M.2 2280 solid-state drive in slot 0,
whichever is applicable. 11. Remove the M.2 2230 solid-state drive in slot 1
or the M.2 2280 solid-state drive in slot 1, whichever is applicable. 12.
Remove the wireless card. 13. Remove the heat sink. 14. Remove the processor.
About this task NOTE: Replacing the system board removes any changes that you
have made to the BIOS using the BIOS setup program. Make the appropriate
changes again after you replace the system board.
The following image indicates the connectors on your system-board.
94
Removing and installing Field Replaceable Units (FRUs)
Figure 65. System board callouts
1. Touchscreen cable (TOUCH) 3. Processor socket (CPU) 5. Processor-power cable (ATX CPU) 7. Fan cable (FAN CPU) 9. System-board power cable (ATX SYS) 11. Wireless-card slot (M.2 WLAN) 13. High-speed cable (MB-HS) 15. Solid-state drive slots (M.2 PCIe SSD 1 + M.2 PCIe SSD 0) 17. Coin-cell battery socket (RTC)
2. Display-backlight cable (LCD BACKLIGHT) 4. Camera cable (WEBCAM) 6. Memory slots (DIMM1 + DIMM2) 8. Control-signal cable (CTRL) 10. Power-supply fan cable (FAN SYS) 12. Audio cable (MB-AUDIO) 14. Power cable (MB-PWR) 16. Display cable (LVDS) 18. PCIe x 16 expansion slot (SLOT1 PCIe4 x4)
The following images indicate the location of the system board and provide a visual representation of the removal procedure.
Removing and installing Field Replaceable Units (FRUs)
95
Figure 66. Removing the system board
96
Removing and installing Field Replaceable Units (FRUs)
Figure 67. Removing the system board
Steps
1. Disconnect the touchscreen cable from its connector (TOUCH) on the system
board. 2. Disconnect the display-backlight cable from its connector (LCB
BACKLIGHT) on the system board. 3. Using the pull tab, disconnect the camera
cable from its connector (WEBCAM) on the system board. 4. Press and hold the
securing clip and disconnect the processor-power cable from its connector (ATX
CPU) on the system
board. 5. Disconnect the fan cable from its connector (FAN CPU) on the system
board. 6. Disconnect the control-signal cable from its connector (CTRL) on the
system board. 7. Disconnect the system-board power cable from its connector
(ATX SYS) on the system board. 8. Disconnect the power-supply fan cable from
its connector (FAN SYS) on the system board. 9. Lift the latch and disconnect
the audio cable from its connector (MB-AUDIO) on the system board. 10. Lift
the latch and disconnect the high-speed cable from its connector (MB-HS) on
the system board. 11. Lift the latch and disconnect the power cable from its
connector (MB-PWR) on the system board. 12. Pinching the securing clips on
either side of the display-cable connector, disconnect the display cable from
its connector
(LVDS) on the system board. 13. Remove the seven screws (M3x5) that secure the
system board to the display-assembly base. 14. Remove the screw (M3x12) that
secures the system board to the display-assembly base. 15. Gently lift the
system board off the display-assembly base.
Removing and installing Field Replaceable Units (FRUs)
97
Installing the system board
CAUTION: The information in this installation section is intended for
authorized service technicians only.
Prerequisites If you are replacing a component, remove the existing component
before performing the installation process.
About this task NOTE: Replacing the system board removes any changes that you
have made to the BIOS using the BIOS setup program. Make the appropriate
changes again after you replace the system board.
The following image indicates the connectors on your system-board.
Figure 68. System board callouts
1. Touchscreen cable (TOUCH) 3. Processor socket (CPU) 5. Processor-power cable (ATX CPU) 7. Fan cable (FAN CPU) 9. System-board power cable (ATX SYS) 11. Wireless-card slot (M.2 WLAN) 13. High-speed cable (MB-HS) 15. Solid-state drive slots (M.2 PCIe SSD 1 + M.2 PCIe SSD 0) 17. Coin-cell battery socket (RTC)
2. Display-backlight cable (LCD BACKLIGHT) 4. Camera cable (WEBCAM) 6. Memory slots (DIMM1 + DIMM2) 8. Control-signal cable (CTRL) 10. Power-supply fan cable (FAN SYS) 12. Audio cable (MB-AUDIO) 14. Power cable (MB-PWR) 16. Display cable (LVDS) 18. PCIe x 16 expansion slot (SLOT1 PCIe4 x4)
98
Removing and installing Field Replaceable Units (FRUs)
The following images indicate the location of the system board and provide a visual representation of the installation procedure.
Figure 69. Installing the system board
Removing and installing Field Replaceable Units (FRUs)
99
Figure 70. Installing the system board
Steps 1. Gently place the system board on the display-assembly base. 2. Align
the screw holes on the system board with the screw holes on the display-
assembly base. 3. Replace the seven screws (M3x5) that secure the system board
to the display-assembly base. 4. Replace the screw (M3x12) that secures the
system board to the display-assembly base. 5. Connect the touchscreen cable to
its connector (TOUCH) on the system board. 6. Connect the display-backlight
cable to its connector (LCB BACKLIGHT) on the system board. 7. Connect the
camera cable to its connector (WEBCAM) on the system board. 8. Connect the
processor-power cable to its connector (ATX CPU) on the system board. 9.
Connect the fan cable to its connector (FAN CPU) on the system board. 10.
Connect the control-signal cable to its connector (CTRL) on the system board.
11. Connect the system-board power cable to its connector (ATX SYS) on the
system board. 12. Connect the power-supply fan cable to its connector (FAN
SYS) on the system board. 13. Connect the audio cable to its connector (MB-
AUDIO) on the system board and close the latch. 14. Connect the high-speed
cable to its connector (MB-HS) on the system board and close the latch. 15.
Connect the power cable to its connector (MB-PWR) on the system board and
close the latch. 16. Connect the display cable to its connector (LVDS) on the
system board.
Next steps 1. Install the processor. 2. Install the heat sink. 3. Install the
wireless card. 4. Install the M.2 2230 solid-state drive in slot 0 or the M.2
2280 solid-state drive in slot 0, whichever is applicable. 5. Install the M.2
2230 solid-state drive in slot 1 or the M.2 2280 solid-state drive in slot 1,
whichever is applicable. 6. Install the I/O bracket. 7. Install the bottom
cover. 8. Install the I/O cover. 9. Install the system-board shield.
100 Removing and installing Field Replaceable Units (FRUs)
10. Install the graphics card. 11. Install the memory. 12. Install the back
cover. 13. Install the stand. 14. Follow the procedure in After working inside
your computer.
Power-button and I/O board
Removing the power-button and I/O board
CAUTION: The information in this removal section is intended for authorized
service technicians only. Prerequisites 1. Follow the procedure in Before
working inside your computer. 2. Remove the stand. 3. Remove the back cover.
4. Remove the system-board shield. 5. Remove the I/O cover. 6. Remove the
bottom cover. 7. Remove the I/O bracket. About this task The following image
indicates the location of the power-button and I/O board and provides a visual
representation of the removal procedure.
Removing and installing Field Replaceable Units (FRUs) 101
Figure 71. Removing the power-button and I/O board
Steps 1. Remove the three screws (M3x5) that secure the power-button and I/O
board shield to the display-assembly base. 2. Lift the power-button and I/O
board shield off the display-assembly base. 3. Lift the latch and disconnect
the power cable from its connector (DB-PWR) on the power-button and I/O board.
4. Lift the latch and disconnect the high-speed cable from its connector (DB-
HS) on the power-button and I/O board. 5. Remove the two screws (M3x5) that
secure the power-button and I/O board to the display-assembly base. 6. Lift
the power-button and I/O board off the display-assembly base.
Installing the power-button and I/O board
CAUTION: The information in this installation section is intended for
authorized service technicians only.
Prerequisites If you are replacing a component, remove the existing component
before performing the installation process.
102 Removing and installing Field Replaceable Units (FRUs)
About this task The following image indicates the location of the power-button
and I/O board and provides a visual representation of the installation
procedure.
Figure 72. Installing the power-button and I/O board Steps 1. Place the power-
button and I/O board on the display-assembly base. 2. Align the screw holes on
the power-button and I/O board with the screw holes on the display-assembly
base. 3. Replace the two screws (M3x5) that secure the power-button and I/O
board to the display-assembly base. 4. Connect the power cable to its
connector (DB-PWR) on the power-button and I/O board and close the latch. 5.
Connect the high-speed cable to its connector (DB-PWR) on the power-button and
I/O board and close the latch. 6. Place the power-button and I/O board shield
on the display-assembly base. 7. Align the screw holes on the power-button and
I/O board shield with the screw holes on the display-assembly base. 8. Replace
the three screws (M3x5) that secure the power-button and I/O board shield to
the display-assembly base. Next steps 1. Install the I/O bracket. 2. Install
the bottom cover. 3. Install the I/O cover.
Removing and installing Field Replaceable Units (FRUs) 103
4. Install the system-board shield. 5. Install the back cover. 6. Install the
stand. 7. Follow the procedure in After working inside your computer.
Audio board
Removing the audio board
CAUTION: The information in this removal section is intended for authorized
service technicians only. Prerequisites 1. Follow the procedure in Before
working inside your computer. 2. Remove the stand. 3. Remove the back cover.
4. Remove the system-board shield. 5. Remove the I/O cover. 6. Remove the
bottom cover. 7. Remove the I/O bracket. About this task The following image
indicates the location of the audio board and provides a visual representation
of the removal procedure.
104 Removing and installing Field Replaceable Units (FRUs)
Figure 73. Removing the audio board
Steps 1. Remove the three screws (M3x5) that secure the audio board shield to
the display-assembly base. 2. Lift the audio-board shield off the display-
assembly base. 3. Lift the latch and disconnect the audio cable from its
connector (DB-AUDIO) on the audio board. 4. Disconnect the speaker cable from
its connector (INT SPKR) on the audio board. 5. Remove the two screws (M3x5)
that secure the audio board to the display-assembly base. 6. Lift the audio
board off the display-assembly base.
Installing the audio board
CAUTION: The information in this installation section is intended for
authorized service technicians only.
Prerequisites If you are replacing a component, remove the existing component
before performing the installation process.
Removing and installing Field Replaceable Units (FRUs) 105
About this task The following image indicates the location of the audio board
and provides a visual representation of the installation procedure.
Figure 74. Installing the audio board Steps 1. Place the audio board on the
display-assembly base. 2. Align the screw holes on the audio board with the
screw holes on the display-assembly base. 3. Replace the two screws (M3x5)
that secure the audio board to the display-assembly base. 4. Connect the power
cable to its connector (DB-PWR) on the audio board and close the latch. 5.
Connect the high-speed cable (DB-PWR) to the audio board and close the latch.
6. Place the audio-board shield on the display-assembly base. 7. Align the
screw holes on the audio-board shield with the screw holes on the display-
assembly base. 8. Replace the three screws (M3x5) that secure the audio-board
shield to the display-assembly base. Next steps 1. Install the I/O bracket. 2.
Install the bottom cover. 3. Install the I/O cover. 4. Install the system-
board shield. 106 Removing and installing Field Replaceable Units (FRUs)
5. Install the back cover. 6. Install the stand. 7. Follow the procedure in
After working inside your computer.
Display-assembly base
Removing the display-assembly base
CAUTION: The information in this removal section is intended for authorized
service technicians only.
Prerequisites 1. Follow the procedure in Before working inside your computer.
2. Remove the stand. 3. Remove the back cover. 4. Remove the graphics card. 5.
Remove the system-board shield. 6. Re