Lenovo ThinkServer User Manual page 153

This topic provides instructions on how to replace a hot-swap redundant power supply module.
This topic applies only to server models that come with hot-swap redundant power supply module(s). For
each hot-swap redundant power supply module, there might be one or two status LEDs on the power
supply module near the power cord connector. When the green LED is lit, it indicates that the hot-swap
redundant power supply module is working properly. When the red LED is lit, it indicates that the hot-swap
redundant power supply module has failed.
The hot-swap redundant power supply modules help you avoid significant interruption to the operation of
the system when a power supply module fails and you can replace a hot-swap redundant power supply
module without turning off the server.
Note: To maintain the EMI integrity and cooling of the server, install a new hot-swap redundant power
supply module as soon as you remove the failing one or cover the other bay with a shield if you just use
one module to provide power.
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.
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.
Before you begin, print all the related instructions or ensure that you can view the PDF version on another
computer for reference.
Notes:
1. Your hot-swap redundant power supply module might look slightly different from the illustrations in
this topic.
2. Use any documentation that comes with the new hot-swap redundant power supply module and follow
those instructions in addition to the instructions in this topic.
To replace a hot-swap redundant power supply module, do the following:
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Chapter 6 Installing, removing, or replacing hardware
141