Dell OptiPlex GX1 Service Manual page 77

When these clips are released, the button comes free from the front panel
of the cover.
computer cover
(upside down)
posts (2)
ring-tabs (2)
To remove a front-panel insert, follow these steps:
To replace a 5.25-inch front-panel insert, position the two ring-tabs over the
posts on the inside of the bay opening, and then press the ring-tabs over the
posts. If necessary, use a
Removing and Replacing Parts on the Low-Profile Chassis
5.25-inch
front-panel
insert
-inch nutdriver to help push on the ring-tabs.
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