Dell XPSU125327CR manual Replacing the System Board, Entering the Service Tag in the Bios

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" 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.

Procedure

1Slide the keyboard cable into the keyboard-cable connector and press down on the connector latch to secure the cable.

CAUTION: Make sure that no cables are placed under the system board.

2Turn the system board over and align the screw holes on the system board with the screw holes on the palm-rest assembly.

3Replace the screws that secure the system board to the palm-rest assembly.

4Connect the coin-cell battery cable to the system board.

5Slide the keyboard-backlight cable, the NFC cable, and the touchpad cable in the respective connectors, and press down on the connector latches to secure the cables.

6Connect the display cables to the system board.

NOTE: When connecting the display cables to the system board, match the labels (L and R) on the display cables to the labels on the system board.

7Connect the power-adapter port cable to the system board.

Postrequisites

1Replace the heat sink. See "Replacing the Heat Sink" on page 30.

2Replace the fan. See "Replacing the Fan" on page 28.

3Replace the mSATA card. See "Replacing the mSATA Card" on page 18.

4Replace the wireless card. See "Replacing the Wireless Card" on page 16.

5Replace the battery. See "Replacing the Battery" on page 14.

6Replace the base cover. See "Replacing the Base Cover" on page 12.

Entering the Service Tag in the BIOS

1Turn on the computer.

2At the Dell logo, press <F2> to enter System Setup.

3Navigate to the Main tab and type the Service Tag in the Service Tag field.

36 Replacing the System Board