Lenovo thinkcentre M700 User Manual page 74

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.
Hazardous voltage, current, and energy levels are present inside any component that has this label
attached. There are no serviceable parts inside these components. If you suspect a problem with
one of these parts, contact a service technician.
To replace the power supply assembly, do the following:
1. Remove any media from the drives and turn off all connected devices and the computer. Then,
disconnect all power cords from electrical outlets and disconnect all cables that are connected to the
computer.
2. Remove the computer cover. See "Removing the computer cover" on page 52.
3. Locate the power supply assembly. See "Computer components" on page 6.
4. Lay the computer on its side. Then, disconnect the power supply assembly cables from the system
board.
5. Remove the four screws that secure the power supply assembly. Then, slide the power supply assembly
to the front of the computer and lift it out of the chassis.
Figure 28. Removing the power supply assembly
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ThinkCentre M700 User Guide