1. Turn off the computer and disconnect all power cords from electrical outlets.
2. Disconnect the optical drive cable from the USB connector on the computer.
3. Remove the screw that secures the optical drive box on the VESA mount bracket and then slide the
optical drive box as shown to remove it from the VESA mount bracket.
Figure 15. Removing the optical drive box
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ThinkCentre M83 and M93/p User Guide