Opening 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 open the computer cover.
CAUTION:
Turn off the computer and wait three to five minutes to let the computer cool
before opening the computer cover.
To open the computer cover:
1. Remove any media from the drives, shut down your operating system, and
turn off all attached devices and the computer.
2. Unplug all power cords from electrical outlets.
3. Disconnect the cables attached to the computer. This includes power cords,
Input/Output (I/O) cables, and any other cables that are connected to the
computer. See “Locating connectors on the front of the computer” on page 80
and “Locating connectors on the rear of the computer” on page 81.
4. Remove any locking devices, such as a cable lock that secures the computer
cover.
5. Carefully lift and position the computer upside down as shown in 6.
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
84 Hardware Maintenance Manual
