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Hardware Maintenance Manual
28
Replacing hardware
7
Attention
Do not remove the computer cover or attempt any repair before
reading the “Safety information” . These precautions and guidelines
will help you work safely.
Note
Use only parts provided by Lenovo.
Removing the computer cover
Important
Turn off the computer and wait 3 to 5 minutes to let the computer
cool before removing the computer cover.
To remove the computer cover:
1. Remove any media (diskettes, CDs, or tapes) from the drives, shut down
your operating system, turn off all attached devices, and the computer.
2. Unplug all power cords from electrical outlets.
3. Disconnect all cables attached to the computer. This includes power
cords, input/output (I/O) cables, and any other cables that are
connected to the computer.
4. Remove any locking devices that secure the computer cover.
5. Pull down the switch at the rear of the chassis and slide the computer
cover to the rear to remove.