Power Computing PowerTower Pro User Manual page 159

4.
Remove the two Phillips-head front drive bay rack screws, slide the front
drive bay rack back and remove it from the chassis.
5.
If you are replacing a drive, remove the mounting screws of the drive, and
remove the drive. If you are installing a drive, insert the drive into the 3.5
inch rack, and install its four mounting screws, two on each side.
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Chapter 7, Installing Internal Drives
PowerTower Pro UserÕs Guide
front 3.5
inch drive
bay rack
drive bay
rack screws
133