Dell Vostro 470 (Mid 2012) - Manual (Page 14)

Figure 9.
Installing The Optical Disk Drive
1. Slide the optical drive in through the front of the computer.
2. Replace the screws that secure the optical drive to the drive cage.
3. Connect the power cable and data cable to the optical drive.
4. Install the cover.
5. Follow the procedures in After Working Inside Your Computer.
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