Dell OptiPlex GX745 User'smanual page 106

1 optical drive
2 shoulder screws (3)
3 shoulder screw slots (2)
6. Connect the power and data cables to the drive and to the system board.
1 power cable
2 data cable
3 SATA optical drive connector
7. Check all cable connections, and fold cables out of the way to provide airflow for the fan and cooling vents.
8. Replace the computer cover (see
9. Update your configuration information in system setup by setting the appropriate Drive option (0 or 1) under Drives. See
10. Verify that your computer works correctly by running the Dell Diagnostics (see
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Replacing the Computer Cover).
Dell Diagnostics).
System Setup.