Dell Inspiron 27 7720 All-in-One Owners Manual - Page 81

System board, Removing the system board

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System board Removing the system board CAUTION: The information in this section is intended for authorized service technicians only. Prerequisites 1. Follow the procedure in Before working inside your computer. NOTE: Your computer's Service Tag is stored in the system board. You must enter the Service Tag in the BIOS setup program after you replace the system board. NOTE: Replacing the system board removes any changes that you have made to the BIOS using the BIOS setup program. You must make the appropriate changes again after you replace the system board. NOTE: Before disconnecting the cables from the system board, note the location of the connectors so that you can reconnect the cables correctly after you replace the system board. 2. Remove the stand. 3. Remove the back cover. 4. Remove the I/O cover. 5. Remove the hard drive. 6. Remove the system-board shield. 7. Remove the memory module. 8. Remove the wireless card. 9. Remove the M.2 2230 solid-state drive or M.2 2280 solid-state drive, as applicable. 10. Remove the integrated heat sink or discrete heat sink About this task The following image indicates the connectors on your system board. Figure 1. System-board connectors 1. Solid-state drive slot 3. Camera-cable connector 2. Touchscreen-cable connector (optional) 4. Backlight-cable connector Removing and installing Field Replaceable Units (FRUs) 81

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System board
Removing the system board
CAUTION:
The information in this section is intended for authorized service technicians only.
Prerequisites
1.
Follow the procedure in
Before working inside your computer
.
NOTE:
Your computer’s Service Tag is stored in the system board. You must enter the Service Tag in the BIOS setup
program after you replace the system board.
NOTE:
Replacing the system board removes any changes that you have made to the BIOS using the BIOS setup
program. You must make the appropriate changes again after you replace the system board.
NOTE:
Before disconnecting the cables from the system board, note the location of the connectors so that you can
reconnect the cables correctly after you replace the system board.
2.
Remove the
stand
.
3.
Remove the
back cover
.
4.
Remove the
I/O cover
.
5.
Remove the
hard drive
.
6.
Remove the
system-board shield
.
7.
Remove the
memory module
.
8.
Remove the
wireless card
.
9.
Remove the
M.2 2230 solid-state drive
or
M.2 2280 solid-state drive
, as applicable.
10.
Remove the
integrated heat sink
or
discrete heat sink
About this task
The following image indicates the connectors on your system board.
Figure 1. System-board connectors
1.
Solid-state drive slot
2.
Touchscreen-cable connector (optional)
3.
Camera-cable connector
4.
Backlight-cable connector
Removing and installing Field Replaceable Units (FRUs)
81