Lenovo 3000 H305 Desktop - Manual (Page 34)

Hardware Maintenance Manual
32
Removing the computer cover
Attention
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 memory cards) 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. Refer to “Locating connectors on the rear
of the computer”.
4. Remove the 3 screws that secure the computer cover at the rear of the
chassis.
5. Slide the computer cover to the rear of the chassis to remove.
Note
For this procedure, it helps to lay the computer flat.