Dell OptiPlex 160L - Manual (Page 80)

16. Replace the computer cover .
17. Connect your computer and devices to electrical outlets, and then turn them on.
See the documentation that came with the drive for instructions on installing any software required for drive operation.
Adding a Second CD or DVD Drive
1. Shut down the computer through the Start menu.
2. Ensure that your computer and attached devices are turned off. If your computer and attached devices did not automatically turn off when you shut
down your computer, turn them off now.
3. Disconnect any telephone or telecommunication lines from the computer.
4. Disconnect your computer and all attached devices from their electrical outlets, and then press the power button to ground the system board.
5. Remove the computer cover .
6. Release and remove the front panel .
7. Remove the middle front-panel insert by pushing on the back of the insert.
8. Ensure that the jumper setting on the new drive is set for "cable select" (see the documentation that came with the drive for information).
9. Remove two drive extra alignment screws from the front of the computer, beneath the floppy drive, and insert them into the drive.
2 front panel
NOTICE: To connect a network cable, first plug the cable into the network wall jack and then plug it into the computer.
CAUTION: Before you begin this procedure, follow the safety instructions .
NOTICE: To disconnect a network cable, first unplug the cable from your computer and then unplug it from the network wall jack.
CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before removing the cover.
NOTICE: Before touching anything inside your computer, ground yourself by touching an unpainted metal surface, such as the metal at the back of the
computer. While you work, periodically touch an unpainted metal surface to dissipate any static electricity that could harm internal components.