Lenovo ThinkCentre M73 User Manual page 58

4. Remove the three screws that secure the optical drive. Then, slide the optical drive out of the front
of the computer.
Figure 18. 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 19. Installing the optical drive
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ThinkCentre M73 User Guide