Compaq 500B Microtower Supplementary Manual page 29

5 To replace the front bezel, align the left side of the
bezel and swing the front bezel toward the computer
to close it.
6 The side panel has several tabs on its top, bottom, and
leading edges.
Removing and Replacing a Hard Disk Drive
7 The tabs fit into slots and over the front lip of the
computer.
8 To reattach the panel, align the tabs on the panel over
the corresponding slots on the computer. Slide the side
cover forward.
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