Service Manual

Removing the power-supply unit

NOTE: 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.

4. Lift the power-supply unit cover away from the chassis.