Setup Guide

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 computers 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
CAUTION: When replacing the system board, it is important to hold it at the center of the board as shown in the
image. The circuitry on the sides of the board is fragile and can be easily damaged if the system board is held at
the sides or neck area.
NOTE: When replacing the system board, angle the system board onto the palm-rest assembly with the SD-card slot side.
Angling it this way while mounting the system board gives sufficient clearance as the audio daughter-board is beneath the
other side of the system board.
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Replacing the system board 45