Dell OptiPlex GX280 - Manual (Page 210)

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 hard-drive cable
2 power cable
6. Check all connectors to be certain that they are properly cabled and firmly seated.
7. Close the computer cover.
8. Attach the computer stand (optional).
NOTICE: To connect a network cable, first plug the cable into the network wall jack and then plug it into the computer.
9. Connect your computer and devices to electrical outlets.