Dell Dimension 2200 - Manual (Page 10)

5. While facing the front of the computer, press in the front-panel release tab at the top of the computer.
6. Swing the front panel away from the computer, disengage the two retaining hooks at the bottom of the front panel, and carefully pull it away from the
computer.
7. To replace the front panel, fit the two front-panel retaining hooks into their corresponding slots on the computer frame. Rotate the front panel toward
the computer until the front panel latches into position.
3.5-Inch Front-Panel Insert
1. Shut down the computer .
2. Turn off any attached devices and disconnect them from their electrical outlets.
3. Disconnect the computer power cable from the wall outlet, and then press the power button to ground the system board.
4. Remove the computer cover .
5. Remove the front panel .
6. From the back of the front panel, press the release tab to the side.
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in " Safety Instructions ."
CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before opening the cover.
NOTICE: To disconnect a network cable, first unplug the cable from your computer and then unplug it from the network wall jack.