Dell Precision Workstation 450 User Manual page 118

do not have this cable)
7. If you are installing a new CD/DVD drive rather than replacing a drive, remove the front-panel inserts.
From inside the drive bay, gently press on each side of the insert until it pops out.
8. Check all cable connections, and fold cables out of the way to provide airflow for the fan and cooling vents.
9. Close the computer cover.
NOTICE: To connect a network cable, first plug the cable into the network wall jack and then plug it into the computer.
10. Connect your computer and devices to electrical outlets, and turn them on.
See the documentation that came with the drive for instructions on installing any software required for drive operation.
11. Update your configuration information by setting the appropriate Drive option (0 or 1) under Drives: Secondary to Auto. See
Secondary Drive n" for more information.
12. Verify that your computer works correctly by running the
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Dell Diagnostics.
"Primary Drive n and