Service 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 Align the screw holes on the system board with the screw holes on the
palm-rest assembly.
2 Replace the screws that secure the system board to the palm-rest
assembly.
3 Align the screw holes on the I/O bracket with the screw holes on the
system board and palm-rest assembly.
4 Replace the screws that secure the I/O bracket to the system board and
palm-rest assembly.
5 Connect the fan cable, power-adapter port cable, and speaker cable to
the system board.
6 Slide the keyboard cable and the I/O-board cable into their respective
connectors on the system board, and then close the latches to secure
the cables.
7 Slide the display cable and the touch-screen board cable into their
respective connectors on the system board, and then close the latches to
secure the cables.
8 Adhere the pieces of tape that secure the display cable and the touch-
screen board cable to their respective connectors on the system board.
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