Dell OptiPlex GX100 - Manual (Page 52)

2. Disconnect the AC power cable from the AC power receptacle on the back of the power supply (see Figure 9 ).
3. Free the power supply from the securing tab labeled "RELEASE —>," and rotate it upward until it locks in its extended position.
Figure 9. Rotating the Power Supply
Removing and Replacing the Front Bezel (Mini Tower Chassis Only)
To access some drive bays in the mini tower chassis, you must first remove the front bezel. To remove the front bezel, perform the following steps.
1. Remove the computer cover .
2. With the cover removed, release the bezel by pressing the tab release (see Figure 10).
Figure 10. Removing the Mini Tower Chassis Front Bezel
3. While you press the tab release, tilt the bezel away from the chassis, disengage the two retaining hooks at the bottom of the bezel, and
carefully pull the bezel away from the chassis.
To replace the bezel, fit the two retaining hooks on the bezel into their corresponding slots at the bottom of the mini tower chassis. Then rotate the
bezel toward the chassis until the tabs snap into their corresponding slots on the bezel.
Removing and Replacing the Expansion-Card Cage
This section describes how to remove and replace the expansion-card cage.
Removing and Replacing the Small-Form-Factor Chassis Expansion-Card Cage
To remove the expansion-card cage from the small-form-factor chassis, perform the following steps.
1 AC power cable
2 AC power receptacle
3 Power supply
4 DC power cables
5 Securing tab
CAUTION: Before you remove the computer cover, see " Safety First —For You and Your Computer ."
1 Tab release
2 Retaining hooks (2)