Dell XPS 730 (Late 2008) - Manual (Page 61)

Replacing Drives 59
6 To replace the optical drive, prepare the drive for installation and check the
documentation that accompanied the drive to verify that the drive is
configured for your computer.
NOTE: If you are installing an IDE drive, configure the drive for the cable
select setting.
7 If no screws are attached to the drive, check the inside of the drive panel
for screws and, if screws are present, attach the screws to the new drive.
1 drive release latch 2 optical drive
1
2