Removing the system board
NOTE: Before working inside your computer, read the safety information that shipped with your computer and follow
the steps in Before working inside your computer. After working inside your computer, follow the instructions in After
working inside your computer. For more safety best practices, see the Regulatory Compliance home page at
www.dell.com/regulatory_compliance.
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 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.
Prerequisites
1. Remove the base cover.
2. Remove the battery.
3. Remove the memory modules.
4. Remove the solid-state drive/Intel Optane memory module.
5. Remove the wireless card.
6. Remove the graphics-card fan.
7. Remove the processor fan.
8. Remove the heat sink.
Procedure
1. Remove the screw (M2x2.5) that secures the display-assembly cable to the system board.
2. Peel the tape that secures the display-assembly cable to the system board.
3. Open the latch and disconnect the display-assembly cable from the system board.
4. Remove the two screws (M2x4) that secure the USB Type-C port bracket to the system board.
5. Lift the USB Type-C bracket off the system board.
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Removing the system board 73
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