Opening The Cover - Lenovo ThinkCentre A57e Hardware Maintenance Manual

Opening the cover

CAUTION:
The heat sink and microprocessor might be very hot. Turn off the computer and
wait three to five minutes to let the computer cool before opening the computer
cover.
This section describes how to remove the cover.
1. Shut down the operating system, remove any media (DVDs, CDs, or tapes)
2. Unplug all power cords from electrical outlets.
3. Disconnect all cables attached to the computer. This includes power cords,
4. If there are thumbscrews securing the cover, remove them.
5. Press the cover-release button on the side of the cover and slide the computer
84
Hardware Maintenance Manual
from the drives, and turn off all attached devices.
input/output (I/O) cables, and any other cables that are connected to the
computer.
cover to the rear to remove.