Supermicro SuperServer SYS-511R-M User Manual page 14

Power Supply Condition
No AC power to the power supply
Power supply critical events causing a shutdown/failure/
OCP/OVP/Fan Fail/OTP/UVP
Power supply warning events where the power supply
continues to operate: high temperature, over voltage, under
voltage, etc.
AC power present and only 12 VSB ON (PS OFF)
Output is on and working properly
AC cord unplugged and in redundant mode
Power Supply Indicators
Green LED
OFF
OFF
OFF
1 Hz Blinking
ON
OFF
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Chapter 1: Introduction
Amber LED
OFF
ON
1 Hz Blinking
OFF
OFF
ON