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Chapter 3: Maintenance and Component Installation
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. The power supply modules are hot-
swappable, meaning 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
• 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.
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