1 mounting-bracket screws (2) 2 system-board screws (8)

NOTE: The mounting-bracket screws need to be removed for the removal of the system board.

9.Remove the eight system-board screws and the two mounting-bracket screws.

10.Slide the system board assembly toward the front of the computer, and then lift the board away.

11.Place the system board assembly that you just removed next to the replacement system board to ensure that it is identical.

Replacing the System Board

1.Gently align the system board in the chassis and slide the board toward the back of the computer.

2.Replace the eight system-board screws and the two mounting-bracket screws.

3.Replace any components and cables that you removed from the system board.

4.Reconnect all cables to their connectors at the back of the computer.

5.Replace the computer cover.

NOTICE: To connect a network cable, first plug the cable into the network port or device, and then plug the cable into the computer.

6. Connect your computer and devices to electrical outlets, and turn them on.

Power Supply

CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.

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Dell DCSM manual Power Supply, Replacing the System Board