Dell OptiPlex 390 (Mid 2011) - Manual (Page 20)

Installing The Optical Drive
1. Slide down the optical-drive latch and push the optical drive from the front
towards the back of the computer.
2. Connect the data cable and power cable to the optical drive.
3. Install the
front bezel .
4. Install the cover .
5. Follow the procedures in After Working Inside Your Computer .
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