Power supply, Replacing the system board, Removing the power supply – Dell Dimension 5100 User Manual
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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
.
6.
Connect your computer and devices to electrical outlets, and turn them on.
Power Supply
Removing the Power Supply
1.
Follow the procedures in "
Before You Begin
."
2.
Remove the
computer cover
.
3.
Disconnect the DC power cables from the system board and the drives.
1 mounting-bracket screws (2)
2 system-board screws (8)
NOTICE:
To connect a network cable, first plug the cable into the network port or device, and then plug the cable into the computer.
CAUTION:
Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.
NOTICE:
To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your
computer's electronic components. You can do so by touching an unpainted metal surface on the computer chassis.