Dell OptiPlex GX280 - Manual (Page 294)

2. Check the documentation for the drive to verify that it is configured for your computer.
3. If your replacement hard 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 rails 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).
1 drive
2 bracket rails (2)
3 screws (4)
4. Gently slide the drive into place until you hear a click or feel the drive securely installed.
5. Connect the power and hard-drive cables to the drive.
1 power cable
2 hard-drive cable
6. Check all connectors to be certain that they are properly cabled and firmly seated.
7. Close the computer cover.