Lenovo ThinkCentre M72e Hardware Maintenance Manual page 82

This section provides instructions on how to remove the computer cover.
CAUTION:
Turn off the computer and wait three to five minutes to let the computer cool before removing the
computer cover.
To remove the computer cover, do the following:
1. Remove any media from the drives and turn off all attached devices and the computer.
2. Disconnect all power cords from electrical outlets.
3. Disconnect the power cords, Input/Output cables, and any other cables that are connected to the
computer. See "Locating connectors, controls, and indicators on the front of your computer" on page
67 and "Locating connectors on the rear of your computer" on page 68.
4. Remove any locking device that secures the computer cover, such as an integrated cable lock.
5. Remove the screw that secures the computer cover.
Figure 11. Removing the computer cover screw
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ThinkCentre Hardware Maintenance Manual