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Chapter 3: Maintenance and Component Installation
3.8 Power Supply
The chassis features redundant power supplies that can be changed without powering down
the system. Failed modules should be replaced as soon as convenient. 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
1. Unplug the AC cord from the module to be replaced.
2. Push and hold the release tab while pulling the module out using the handle.
3. Push the replacement power supply module into the empty bay until it clicks into the
locked position.
4. Plug the AC power cord into the module.
