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Power Supply
The system features redundant power supplies and will continue to operate if one module fails.
It should be replaced as soon as convenient. They can be changed without powering down
the system. New units can be ordered directly from Supermicro or authorized distributors.
These power supplies are auto-switching capable. This feature enables them to automatically
sense the input voltage and operate at a 100-120v or 180-240v.
Power Supply LEDs
On the rear of the power supply module, an LED displays the status.
•
Solid Green: When illuminated, indicates that the power supply is on.
•
Blinking Green: When blinking, indicates that the power supply is plugged in and turned
off by the system.
•
Blinking Amber: When blinking, indicates that the power supply has a warning condition
and continues to operate.
•
Solid Amber: When illuminated, indicates that the power supply is plugged in, and is in
an abnormal state. The system might need service. Please contact Supermicro technical
support.
Changing the Power Supply Module:
1. Unplug the AC cord from the module to be replaced.
2. On the back of the module, push the release tab sideways.
3. Pull the module out using the handle.
PWS1
PWS2
2
Release Tabs
Chapter 3: Maintenance and Component Installation
Figure 3-13. Power Supply Release Tabs
53
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