Lenovo ThinkCentre Edge 91 User Manual page 53

To replace an optical drive, do the following:
1. Turn off the computer and disconnect all power cords from electrical outlets.
2. Remove the computer cover. See "Removing the computer cover" on page 30.
3. Remove the front bezel. See "Removing and reinstalling the front bezel" on page 30.
4. Pivot the drive bay assembly upward. See "Accessing the system board components and drives"
on page 32
5. Disconnect the signal cable and the power cable from the optical drive.
6. Hold the optical drive and remove the two screws that secure the optical drive.
Figure 24. Removing the optical drive
.
Chapter 5 Installing or replacing hardware
41