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Chapter 9. Replacing Hardware; Removing The Computer Cover - Lenovo 3000 H100 Hardware Maintenance Manual

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Hardware Maintenance Manual
Replacing hardware

Removing the computer cover

To remove the computer cover:
1. Before removing any media (diskettes, CDs, or memory cards) from the
2. Unplug all power cords from electrical outlets.
3. Disconnect all cables attached to the computer. This includes power
4. Remove the two screws that secure the computer cover at the rear of
Do not remove the computer cover or attempt any repair before
reading the "Important safety information" in the Safety and Warranty
Guide that was included with your computer or in the Hardware
Maintenance Manual (HMM) for the computer. To obtain copies of the
Safety and Warranty Guide or HMM, go to the Support Web site at
Use only parts provided by Lenovo.
Turn off the computer and wait 3 to 5 minutes to let the computer
cool before removing the computer cover.
drives, shut down your operating system, turn off all attached devices,
and the computer.
cords, input/output (I/O) cables, and any other cables that are
connected to the computer. Refer to "Locating connectors on the rear
of the computer".
the chassis.


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