Replacing 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.
Topics:
• Procedure
• Post-requisites
Procedure
CAUTION:
To avoid damaging the system board, ensure that no cables are placed under it.
1. Align the screw holes on the system board with the screw holes on the palm rest and keyboard assembly.
2. Replace the three screws (M2x3) that secure the system board to the palm rest and keyboard assembly.
3. Connect the hard-drive cable and close the latch to secure the cable.
4. Slide the touch-pad cable into the connectors on the system board and close the latch to secure the cable.
5. Slide the keyboard cable and the status-light board cable into the connectors on the system board and close the latches to secure the
cables.
6. Adhere the tape that secures the keyboard cable to the system board.
7. Connect the speaker cable to the system board.
8. Slide the display cable into the connector on the system board and close the latch to secure the cable.
9. Connect the power-adapter port cable to the system board.
Post-requisites
1. Follow the procedure from step 4 to step 5 in “Replacing the hard drive”.
2. Replace the solid-state drive.
3. Replace the heat-sink assembly (for computer with discrete graphics card).
4. Replace the heat sink (for computer with integrated graphics card).
5. Replace the fan (for computer with integrated graphics card).
6. Replace the wireless card.
7. Replace the memory module.
8. Replace the battery.
9. Replace the base cover.
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50 Replacing the system board
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