Service Manual

Replacing the power-supply unit
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. 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.
Procedure
1 Place the power supply on the chassis.
2 Align the screw holes on the power-supply unit with the screw holes on the chassis.
3 Replace the four screws (#6-32 X 1/4") that secure the power-supply unit to the chassis.
4 Align the screw holes on the power-supply unit bracket with the screw holes on the power-supply unit cage.
5 Replace the two screws (#6-32 X 1/4") that secure the power-supply unit bracket to the power-supply unit cage.
49