Owners Manual

Replacing the system board

WARNING: 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.

Procedure

1 Slide the I/O ports on the system board into the slots on the palm-rest assembly.

2 Align the screw holes on the system board with the screw holes on the palm-rest assembly, and then replace the two screws (M2x2)

that secure the system board to the palm-rest assembly.

3 Connect the power-adapter port cable to the system board.

4 Connect the speaker cable to the system board.

5 Connect the keyboard cable to the system board and close the latch to secure the cable.

6 Connect the keyboard-backlit cable to the system board and close the latch to secure the cable.

7 Connect the touchpad cable to the system board and close the latch to secure the cable.

8 Connect the hard-drive cable to the system board and close the latch to secure the cable.

9 Connect the coin-cell battery to the system board.

10 Connect the I/O-board cable to the system board.

56 Replacing the system board