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 three screws (M2x2 Big Head) that secures the system board to the
palm-rest assembly.
3 Align the screw holes on the system-board bracket with the screw holes on the
system board and the palm-rest assembly.
4 Replace the two screws (M2.5x5) that secure the system-board bracket to the
system board and the palm-rest assembly.
5 Slide the I/O-board cable into the connector on the system board and close the
latch to secure the cable.
6 Adhere the tape that secures the I/O-board cable to the system board.
7 Connect the power-adapter port-cable and the speaker cable to the system
board.
8 Slide the status-light board cable, keyboard cable, keyboard backlit cable, and
touch-pad cable into the connector on the system board and close the latch to
secure the cable.
9 Slide the display cable and the touch-screen board-cable into their respective
connectors close the latches to secure the cables.
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