Replacing The Power Supply Assembly - Lenovo ThinkCentre M79 Hardware Maintenance Manual

10. Lower and position the heat sink fan duct on the top of the heat sink and fan assembly until it snaps
into position.
Figure 45. Installing the heat sink fan duct
What to do next:
• To work with another piece of hardware, go to the appropriate section.
• To complete the installation or replacement, go to "Completing the parts replacement" on page 151.

Replacing the power supply assembly

Attention: Do not open your computer or attempt any repair before reading and understanding the Chapter
1 "Read this first: Important safety information" on page 1.
Although there are no moving parts in your computer after the power cord has been disconnected, the
following warnings are required for your safety and proper Underwriters Laboratories (UL) certification.
CAUTION:
Hazardous moving parts. Keep fingers and other body parts away.
CAUTION:
Never remove the cover on a power supply or any part that has the following label attached.
.
Chapter 11 Installing or replacing hardware
129