Dell Dimension XPS T___ - Manual (Page 17)

The insert for the lower 5.25-inch bay is mounted to the drive cage. Press in the two tabs on the right side, and rotate the insert toward you until the
retaining hook disengages from the drive cage.
Reinstall the insert by fitting the hook into the slot on the left side of the drive cage, rotating the insert into place, and snapping the tabs on the right
side of the insert into the slots in the drive cage.
Upper 3.5-Inch Drive
To remove the upper 3.5-inch drive, perform the following steps:
1. Remove the bezel.
2. Remove the drive cage.
3. Remove the 6/32 x 1/4-inch screw securing the drive bracket to the drive cage, and then remove the bracket as shown.
When you replace a drive, be sure to set the jumpers on the replacement drive to match the jumpers on the drive you removed. For additional
information about jumper settings on enhanced integrated drive electronics (EIDE) drives, see
EIDE Subsystem .
1 Tabs (2)
2 Front-panel insert
3 Retaining hook
1 Drive-bracket mounting screw
2 Drive assembly screws (3)
3 Drive bracket
NOTES: The three screws that secure the drive to the bracket and the left side of the drive cage have 3-millimeter (mm) threads. Be sure
to use the correct 3 x 5-mm screws when you secure the replacement drive to the bracket and the drive cage.
Also note which 6/32 x 1/4-inch screw was used to secure the drive bracket to the drive cage in step 3, and use the same screw when you
reinstall the bracket with its attached drive.