Dell OptiPlex 170L User Manual page 110

1 secondary hard drive 4 bracket securing screw
2 drive slots (2) 5 drive bracket
3 bracket tabs (2) 6 bracket securing screw
8. Connect the power and data cables to both drives.
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, and turn them on.
See the documentation that came with the drive for instructions on installing any software required for drive operation.
CD/DVD Drive
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.
CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before opening the cover.
Installing a CD/DVD Drive
1. Follow the procedures in "Before You
2. Release and remove the front panel:
a. For systems with the release lever, push the release lever to release the top tab (see the following figure).
For systems without the release lever, reach inside the computer and push the top tab towards you to release it.
b. Reach inside the computer and push the bottom tab towards you to release it (the middle tab releases automatically).
c. Rotate the front panel to separate it from the side hinges.
1 side hinges (3) 4 middle tab
2 front panel 5 bottom tab
3 top tab 6 release lever (not on all computers)
3. Remove the middle and bottom front-panel inserts by pushing on the back of the inserts.
Begin."