Power Computing PowerCenter PRO User Manual page 94

Installing PCI Expansion Cards
If you have a Low-Profile chassis
1. Remove the three large thumb screws from the rear of the computer
cover and put them where you will be able to find them when you're
ready to replace the cover.
One thumb screw is at the top of the cover to the left of center; the other
two are on the sides. If necessary, use a small coin or a flat-bladed
screwdriver to loosen the screws.
2. Gently, but firmly, pull apart the bottom corners of the cover, pull
the cover toward you slightly, lift it off and set it aside.
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PowerCenter Pro User's Guide
thumb screws
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