5.
Remove the screws that secures the power supply to the chassis.
6.
Slide the power supply inward and lift the power supply unit out of the computer.
Installing the Power Supply Unit
1.
Place the power supply in the chassis and slide outward to secure it.
2.
Tighten the screws that secure the power supply to the back of the computer.
3.
Tighten the screws that secures the power supply to the chassis.
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