Dell OptiPlex 3010 (Mid 2012) - Manual (Page 30)

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Removing The Power Supply
Removing the System Board
1. Follow the procedures in Before Working Inside Your Computer .
2. Remove the cover .
3. Remove the front bezel .
4. Remove the hard drive .
5. Remove the expansion cards .
6. Remove the heat sink .
7. Disconnect all the cables connected to the system board.
8. Lift and release the expansion-card latch to gain access to the screws securing the system board.
9. Remove the screws that secure the system board to the chassis.
10. Slide the system board towards the front of the computer.
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