Dell OptiPlex GX150 - Manual (Page 61)

2. If the replacement drive does not have the bracket rails attached, remove the old drive from the bracket by removing the four screws that
secure the drive to the bracket rails.
3. Attach the bracket to the new drive by aligning the screw holes on the drive with the screw holes on the bracket rails and tightening all four
screws.
Installing a 5.25-Inch Drive in the Small Mini-Tower System
4. If the new drive does not have the bracket rails attached, install the extra rail set that is located inside your computer, underneath the cover.
5. If the new drive is going into a previously empty bay, remove the 5.25-inch front panel and remove the insert by pressing on the four tabs and
pulling the insert away from the panel. Replace the front panel by snapping into place.
6. Install the 5.25-inch floppy drive and bracket assembly in the chassis by gently sliding the bracket into place until the tabs securely click into
position.
7. If you are installing a drive that has its own controller card, install the controller card in an expansion slot .
8. Connect a power cable to the power input connector on the back of the drive.
9. Connect the appropriate interface cable to the interface connector on the back of the drive.
If your system came with an EIDE CD-ROM or tape drive, use the spare connector on the existing interface cable. Otherwise, use the
EIDE interface cable provided in the drive kit.
Attaching Cables to the 5.25-Inch Drive in the Small Mini-Tower System