Lenovo H430 Desktop - Manual (Page 43)

Chapter 9. Replacing hardware
41
Replacing hardware
9
Attention
Do not remove the computer cover or attempt any repairs 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:
http://consumersupport.lenovo.com
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 down before removing the computer cover.
To remove the computer cover:
1. Remove any media (disks, CDs, or memory cards) from the drives, shut
down the operating system, and turn off the computer and all attached
devices.
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 two screws that secure the computer cover at the rear of
the chassis.