Dell Precision 450 - Manual (Page 61)

2. Press inward on the two tabs on the sides of the drive, slide the drive upward, and remove it from the floppy-drive bay.
Installing a Floppy Drive
1. If you are replacing a drive and the the new drive does not have the bracket rails attached, remove the rails from the old drive by removing the two
screws that secure each rail to the drive. Attach the bracket to the new drive by aligning the screw holes on the drive with the screw holes on the
bracket rails and then inserting and tightening all four screws (two screws on each rail).
2. Gently slide the drive into place until the tabs securely click into position.
3 floppy-drive connector
(DSKT)
1 tabs (2)
2 floppy drive
1 drive
2 bracket rails (2)
3 screws (4)