Dell OptiPlex 990 Service Manual
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Input/Output Panel 13
Removing the Input/Output Board
1. Follow the procedures in
Before Working Inside Your Computer
.
2. Remove the
cover
.
3. Remove the
front bezel
.
4. Remove the
drive cage
.
5. Disconnect the Input/Output board cable from the system board.
6. Remove the screws that secure the Input/Output bracket.
7. Remove the Input/Output bracket from the chassis.
8. Remove the screws that secure the Input/Output board.
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