Gateway Tower User Manual page 260

Chapter 13: Upgrading Your Computer
4
While pushing in on the bezel release tab (see
of the bezel forward until the bezel release tab unlocks from the case, then
swing the front bezel outward and to the left until the left-side bezel tab
unhooks from the slot in the computer case.
5
If you are replacing a drive, disconnect the drive cables, noting their
locations and orientation. (You will reconnect the cables after you install
the new drive.) See the drive documentation for further instructions.
250
Drive
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Step 3) pull the right side
Data ribbon Power cable
cable