Lenovo ThinkCentre M80 Hardware Maintenance Manual for ThinkCentre M80 - Page 115
Removing the computer cover, Disconnect the power cord, Input/Output I/O cables
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Removing the computer cover Attention: Do not open your computer or attempt any repair before reading and understanding the "Important safety information" in the ThinkCentre Safety and Warranty Guide that came with your computer. To obtain a copy of the ThinkCentre Safety and Warranty Guide, go to: http://www.lenovo.com/support 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 all media from the drives. Then, turn off all attached devices and the computer. 2. Disconnect all power cords from electrical outlets. 3. Disconnect the power cord, Input/Output (I/O) cables, and all other cables that are connected to the computer. 4. Remove any locking device that secures the computer cover, such as an integrated cable lock or a padlock. 5. Remove the two screws that secure the computer cover and slide the computer cover to the rear to remove it. Figure 41. Removing the computer cover Chapter 9. Installing or replacing hardware: 7181, 7189, 7239, 7492, 7507, 7513, and 7529 107