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.
Topics:
• Procedure
• Post-requisites
Procedure
1 Place the power supply on the chassis and slide the power-supply unit towards the back of the chassis until it snaps into place.
2 Align the screw holes on the power-supply unit with the screw holes on the chassis.
3 Replace the four screws (6-32UNCx6.3) that secure the power-supply unit to the chassis.
4 Route the power-supply unit cables through the routing guides on the chassis.
5 Connect the power cables to their extensions.
6 Connect the processor-power cable and system-board power cable to the system board.
7 Connect the power cables to the hard drives and optical drive.
NOTE
: For computers with graphics card, connect the power cable to the graphics card, if applicable.
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52 Replacing the power-supply unit
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