Removing The Computer Cover - Lenovo ThinkCentre 3231 Hardware Maintenance Manual

Removing the computer cover

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:
1. Remove any media from the drives, shut down your operating system, and
2. Unplug all power cords from electrical outlets.
3. Disconnect the cables attached to the computer. This includes power cords,
4. Remove any locking devices, such as a cable lock that secures the computer
5. If there are thumbscrews that secure the computer cover, remove them.
86
Hardware Maintenance Manual
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
turn off all attached devices and the computer.
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 84
and "Locating connectors on the rear of the computer" on page 85.
cover.