Lenovo ThinkCentre M57p - Manual (Page 39)

2. Pivot the drive-bay-assembly upward to gain access to the optical drive. See
Figure 26.
3. Disconnect the signal and power cables from the rear of the optical drive.
4. Press the optical-drive lock 1 .
5. Slide the optical drive up 3 out the drive bay assembly. See Figure 27.
6. Install the new optical drive into the bay.
Figure 26. Accessing the optical drive
Figure 27. Removing the optical drive
Chapter 3. Installing options and replacing hardware 31