Lenovo ThinkCentre M72e Hardware Maintenance Manual page 98

4. Remove the three screws that secure the optical drive. Then, slide the optical drive out of the front
of the computer.
Figure 23. Removing the optical drive
5. Slide the new optical drive into the drive bay from the front and align the screw holes in the new optical
drive with the corresponding holes in the drive bay. Then, install the three screws to secure the new
optical drive in place.
Figure 24. Installing the optical drive
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ThinkCentre Hardware Maintenance Manual