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
• Flashing the BIOS
Procedure
1. Align the screw holes on the system board with the screw holes on the display-assembly base.
2. Replace the six screws (M3x5) that secure the system board to the display-assembly base.
3. Slide the display cable into the connector on the system board and close the latch to secure the cable.
4. Adhere the tape that secures the display cable from the connector on the system board.
5. Connect the display-backlight cable to the system board.
6. Slide the power-button board cable into the connector on the system board and close the latch to secure the cable.
7. Connect the microphone cable to the system board.
8. Slide the media-card reader cable into the connector on the system board and close the latch to secure the cable.
9. Connect the speaker cable to the system board.
10. Connect the fan cable to the system board.
11. Connect the camera cable to the system board.
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