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Replacing the power supply assembly
Attention:
Do not open your server or attempt any repair before reading and understanding the Safety Information and the
Warranty and Support Information on the ThinkServer Documentation DVD that came with your product, and
“Guidelines” on page 15
. To obtain a copy of the publications, go to:
http://www.lenovo.com/support
This section provides instructions on how to replace the power supply assembly.
Although there are no moving parts in your server after the power cord has been disconnected, the following
warnings are required for your safety and proper Underwriters Laboratories (UL) certication.
DANGER
Hazardous moving parts. Keep ngers 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 all media from the drives and turn off all attached devices and the server. Then, disconnect all
power cords from electrical outlets and disconnect all cables that are connected to the server.
2. Remove the server cover. See “Removing the server cover” on page 17.
3. Lay the server on its side and disconnect the power supply assembly cables from the system board and
all drives. See “Locating parts on the system board” on page 11.
Chapter 5. Installing, removing, or replacing hardware 35