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 screws 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.
5 Replace the screws that secure the power-supply unit bracket to the
power-supply unit.
6 Slide the power supply unit release latches towards the top of the
computer.
7 Lift and rotate the power-supply unit away from the chassis while pressing
and holding the graphics-card bracket.
8 Connect the power cables to the graphics card, hard drives, and optical
drive.
9 Connect the processor-power cable and system-board power cable to the
system board.
10 Rotate the power-supply unit towards the chassis until the unit snaps into
place.
11 Slide the power supply unit release latches towards the bottom of the
computer.
Post-requisites
Replace the left-side cover.
53
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