Replacing 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.
Topics:
• Procedure
• Post-requisites
Procedure
WARNING: The cables and ports on the back of the power-supply unit are color-coded to indicate the different power
wattage. Ensure that you plug in the cable to the correct port. Failure to do so may result in damaging the power-supply
unit and/or system components.
1. Slide the power-supply unit into the metal bracket.
2. Press and hold the securing tab on the chassis and slide the power-supply unit into the chassis until it snaps into position.
a. securing tab
b. power-supply unit
3. Align the notch on the power-supply unit cover with the tab on the chassis.
4. Slide the power-supply unit cover towards the tabs until it locks in place.
5. Replace the four screws (#6-32x6) that secure the power-supply unit to the bezel.
6. Connect the power cable to the power-supply unit.
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