Gateway 7250R System Manual page 38

3
For easier access to the CD drive, remove the cables to the diskette drive
as described in "Replacing the diskette drive" on page 24. Note the
orientation of the cables so you can replace them later.
4
Remove the power and data cables from the back of the CD drive, noting
their locations and orientations. (You will reconnect these cables after you
install the new drive.)
5
Loosen the three captive thumbscrews that secure the CD drive tray to
the chassis.
6
Slide the CD drive tray out of the front of the chassis.
7
Remove the CD drive from the tray by removing the three screws that
secure the drive to the tray and disconnecting the drive connector at the
back of the tray.
8
Place the new drive on the tray, connecting the drive to the tray
connector and replacing the three screws you removed in Step 7.
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Drives