Dell XPS 15 9500 Service Manual - Page 39

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: 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. 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: After your computer is reassembled and powered on, it prompts for the Real Time Clock (RTC) reset. When the RTC reset cycle occurs, the computer restarts several times and then an error message is displayed- "Time of day not set". Enter the BIOS when this error appears and set the date and time on your computer to resume normal functionality. 2. Remove the base cover. 3. Remove the battery. 4. Remove the speakers. 5. Remove the memory. 6. Remove the solid state drive1. 7. Remove the solid state drive2. 8. 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. 9. Remove the left fan. 10. Remove the right fan. 11. Remove the I/O board. About this task The following image indicates the connectors on your system board. Figure 1. System-board connectors 1. Fingerprint reader-board cable 2. Antenna cables 3. Keyboard control-board cable The following images indicate the location of the system board and provide a visual representation of the removal procedure. Removing and installing components 39

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System board
Removing the system board
Prerequisites
1.
Follow the procedure in
Before working inside your computer
.
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.
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:
After your computer is reassembled and powered on, it prompts for the Real Time Clock (RTC) reset. When
the RTC reset cycle occurs, the computer restarts several times and then an error message is displayed- "Time of
day not set". Enter the BIOS when this error appears and set the date and time on your computer to resume normal
functionality.
2.
Remove the
base cover
.
3.
Remove the
battery
.
4.
Remove the
speakers
.
5.
Remove the
memory
.
6.
Remove the
solid state drive1
.
7.
Remove the
solid state drive2
.
8.
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.
9.
Remove the
left fan
.
10.
Remove the
right fan
.
11.
Remove the
I/O board
.
About this task
The following image indicates the connectors on your system board.
Figure 1. System-board connectors
1.
Fingerprint reader-board cable
2.
Antenna cables
3.
Keyboard control-board cable
The following images indicate the location of the system board and provide a visual representation of the removal procedure.
Removing and installing components
39