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 computer cover.
2. Remove the front bezel.
3. Follow the procedure from step 1 to step 6 in “Removing the optical drive”.
Procedure
1. Press the securing clip and disconnect the power-supply unit cable (ATX_CPU) from the system board.
2. Press the securing clip and disconnect the power-supply unit cable (ATX_SYS) from the system board.
3. Note the power-supply unit cable routing and remove the power-supply unit cable from the routing guides on the chassis.
4. Remove the three screws (#6-32x6.35) that secure the power-supply unit to the chassis.
5. Press the clamp and slide the power-supply unit towards the front of the chassis to release it from the chassis.
6. Lift the power-supply unit, along with the cables, off the chassis.
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Removing the power-supply unit 53
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