Dell OptiPlex GX100 - Manual (Page 58)

2. If you have installed a padlock through the padlock ring on the back panel, remove the padlock.
3. If your computer has a mini tower chassis, skip to step 4 . If your computer has a small-form-factor or low-profile chassis, remove the
computer cover as follows:
a. Press in on the two securing buttons until the cover is free to swing up (see Figure 1 or Figure 2 ).
b. Raise the back of the cover, and pivot it toward the front of the computer.
c. Lift the cover off the hooks at the front of the chassis.
Figure 1. Removing the Small-Form-Factor Computer Cover
Figure 2. Removing the Low-Profile Computer Cover
4. If your computer has a mini tower chassis, remove the computer cover as follows:
a. Face the back of the computer and slide the upper half of the padlock ring to the left to unlock the cover release mechanism.
b. Face the left side cover and press the left-cover release button (located at the bottom-left corner of the front panel), see Figure 3 .
c. Lift the bottom of the cover, allowing it to pivot up toward you.
d. Disengage the tabs that secure the cover to the top of the chassis, and lift the cover away.
Figure 3. Removing the Mini Tower Computer Cover