Dell OptiPlex GX280 - Manual (Page 347)

1 drive
2 shoulder screws (3)
4. Check the documentation that accompanied the drive to verify that the drive is configured for your computer. If you
are installing an IDE drive, configure the drive for the cable select setting.
5. Gently slide the drive into place until you hear a click or feel the drive securely installed.
1 CD/DVD drive
2 shoulder screws (3)
3 shoulder screw slot
6. Connect the power and CD/DVD drive cables to the drive and to the system board.