Service Manual

Removing 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.
Prerequisites
1 Remove the stability foot.
2 Remove the left and right side-panels. See “Removing the side panels”.
3 Remove the graphics cards or multiple graphics cards.
Procedure
NOTE: Note the routing of all cables as you remove them so that you can route them correctly after you replace the
power-supply unit.
1 Lay the chassis on the right side.
2 Press the release tabs on the power cables and disconnect all the cables from the power-supply unit.
3 Remove the four screws (#6-32x6) that secure the power-supply unit to the back of the chassis.
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