User 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

desired changes again after you replace the system board.

Procedure

1 Slide the display cable and I/O-board cable into the connectors on the

system board and close the latches to secure the cables.

2 Adhere the tapes that secure the display cable and I/O-board cable to the

system board.

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

4 Turn the system board over.

5 Slide the ports into the slots on the palm-rest assembly.

6 Slide the system board below the tab on the left speaker and align the

screw hole on the system board with the screw hole on the palm-rest

assembly.

7 Replace the screw that secures the system board to the palm-rest

assembly.

8 Connect the speaker cable to the system board.

9 Turn the computer over and open the display as far as possible,

10 Slide the power-button board cable and touch-pad cable into the

connectors on the system board and close the latches to secure the

cables.