Dell OptiPlex 790 (Early 2011) - Manual (Page 35)

System Fan
13
Removing the System Fan
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. Remove the fan shelter .
6. Disconnect the fan cable from the system board.
7. Slide the grommets inward along the groove and pass through the chassis.
8. Lift and remove the system fan from the computer.
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