Dell OptiPlex 9010 (Mid 2012) - Manual (Page 21)

Installing the System Fan
1. Place the system fan in the chassis.
2. Pass the grommets through the chassis and slide outward along the grooves to secure them in place.
3. Thread the fan cable through the restraint and connect it to the system board.
4. Install the:
a. drive cage
b. front bezel
c. cover
5. Follow the procedures in After Working Inside Your Computer .
Removing the Speaker
1. Follow the procedures in Before Working Inside Your Computer .
2. Remove the:
a. cover
b. front bezel
c. drive cage
3. Disconnect the speaker cable from the system board.
4. Press the speaker-securing tab, and slide the speaker towards the right of the computer to release it.
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