Replacing The Power Supply - Lenovo ThinkStation Hardware Maintenance Manual

Replacing the power supply

This section provides information on how to remove or replace the power supply.
To replace the power supply, do the following:
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Hardware Maintenance Manual
Attention
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 servicable parts inside
these components.
Attention
Do not open your computer or attempt any repair before reading and understanding the
"Important safety information" in the ThinkStation Safety and Warranty Guide that came
with your computer. To obtain a copy of the ThinkStation Safety and Warranty Guide, go to:
http://www.lenovo.com/support.
1. Remove the computer cover and then lay the computer on its side. See
"Removing the cover" on page 96.
2. Locate the power supply assembly. See "Locations" on page 97.
3. Disconnect the power supply cables from the system board connectors.
Disconnect the power supply cables from all adapter cards (some models) and
from all drives.
4. Remove the power supply cables from the cable clips and ties.
5. Remove the five screws at the rear of the chassis that secure the power supply.