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CAUTION:
Turn off the computer and wait three to ve minutes to let the computer cool before opening the
computer cover.
To open 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 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
69 and “Locating connectors on the rear of your computer” on page 70.
4. Remove any locking device that secures the computer cover, such as an integrated cable lock.
5. Carefully lift and position the computer upside down as shown.
6. Pivot the cover-release button 1 on the rear of the computer and then open the computer cover as
shown.
Figure 5. Opening the computer cover
Removing and reinstalling the front bezel
Attention:
Do not open your computer or attempt any repair before reading and understanding the “Important safety information”
in the ThinkCentre User Guide. To obtain a copy of the ThinkCentre User Guide, go to:
http://www.lenovo.com/ThinkCentreUserGuides
This section provides instructions on how to remove and reinstall the front bezel.
To remove and reinstall the front bezel, do the following:
1. Remove all media from the drives and turn off all attached devices and the computer. Then, disconnect
all power cords from electrical outlets and disconnect all cables that are connected to the computer.
2. Open the computer cover. See “Opening the computer cover” on page 72.
Chapter 8. Replacing FRUs 73