Dell XPS 17 9700 Service Manual - Page 44

System board, Removing the system board

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System board Removing the system board Prerequisites 1. Follow the procedure in Before working inside your computer. NOTE: The Service Tag of your computer is stored in the system board. 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. 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 base cover. 3. Remove the battery. 4. Remove the memory modules. 5. Remove the M.2 2230 solid-state drive or the M.2 2280 solid-state drive from the SSD1 slot. 6. Remove the M.2 2230 solid-state drive or the M.2 2280 solid-state drive from the SSD2 slot. 7. Remove the heat sink. NOTE: The system board can be removed or installed together with the heat sink attached. This simplifies the procedure and avoids breaking the thermal bond between the system board and the heat sink. 8. Remove the right fan. 9. Remove the left fan. 10. Remove the I/O board. 11. Remove the display assembly. About this task The following image indicates the location of the cables on your system board. Figure 1. System-board cables 1. Power-button cable 3. Left antenna cable (applicable only to computers shipped with active antenna) 5. Keyboard cable 2. Left fan cable 4. Left speaker cable 6. Right speaker cable 44 Removing and installing components

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System board
Removing the system board
Prerequisites
1.
Follow the procedure in
Before working inside your computer
.
NOTE:
The Service Tag of your computer is stored in the system board. 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. 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
base cover
.
3.
Remove the
battery
.
4.
Remove the
memory modules
.
5.
Remove the
M.2 2230 solid-state drive
or the
M.2 2280 solid-state drive
from the SSD1 slot.
6.
Remove the
M.2 2230 solid-state drive
or the
M.2 2280 solid-state drive
from the SSD2 slot.
7.
Remove the
heat sink
.
NOTE:
The system board can be removed or installed together with the heat sink attached. This simplifies the
procedure and avoids breaking the thermal bond between the system board and the heat sink.
8.
Remove the
right fan
.
9.
Remove the
left fan
.
10.
Remove the
I/O board
.
11.
Remove the
display assembly
.
About this task
The following image indicates the location of the cables on your system board.
Figure 1. System-board cables
1.
Power-button cable
2.
Left fan cable
3.
Left antenna cable (applicable only to computers shipped
with active antenna)
4.
Left speaker cable
5.
Keyboard cable
6.
Right speaker cable
44
Removing and installing components