Removing 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" on page 7. After working inside your computer, follow the instructions in "After Working Inside Your Computer" on page 9.

For more safety best practices, see the Regulatory Compliance home page at dell.com/regulatory_compliance.

Prerequisites

1Remove the base cover. See "Removing the Base Cover" on page 10.

2Remove the battery. See "Removing the Battery" on page 13.

3Remove the wireless card. See "Removing the Wireless Card" on page 15.

4Remove the mSATA card. See "Removing the mSATA Card" on page 17.

5Remove the fan. See "Removing the Fan" on page 26.

6Remove the heat sink. See "Removing the Heat Sink" on page 29.

Procedure

NOTE: Replacing the system board removes any changes you have made to the BIOS using System Setup. Enter the Service Tag of your computer in the BIOS and make the desired changes again after you replace the system board.

For more information on entering the Service Tag in the BIOS, see "Replacing the System Board" on page 36.

NOTE: Before disconnecting the cables from the system board, note the location of the connectors so that you can reconnect them correctly after you replace the system board.

1Disconnect the power-adapter port cable from the system board.

2Using the pull tabs, disconnect the display cables from the system board.

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Dell XPSU125327CR manual Removing the System Board