Dell OptiPlex 990 Service Manual
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10. Slide the power supply inward and remove the power supply.
Installing The Power Supply
1. Place the power supply in the chassis and slide it outward to secure it.
2. Tighten screws to secure the power supply to the chassis.
3. Connect the cables to the system board.
4. Install the
heat sink
.
5. Install the
intrusion switch
.
6. Install the
drive cage
.
7. Install the
front bezel
.
8. Install the
cover
.
9. Follow the procedures in
After Working Inside Your Computer
.
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