Service Manual

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 module.
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 (for systems shipped with an integrated graphics card) or the heat sink (for systems shipped with a
discrete graphics card).
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.
About this task
The following image indicates the location of the connectors on your system board.
Figure 1. System-board connectors
1.
Power-button cable 2. Left fan cable
3. Left speaker cable 4. Keyboard cable
5. Right speaker cable 6. Antenna cables
7. Right fan cable 8. Display cable and camera cable
Removing and installing components 43