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Hardware Installation
3-8-1 Power Supply LED Behavior
Power Supply LED
State
Description
+12V output ON and OK
No AC power to all power supplies
0.5Hz Blink/Green
2Hz Blink/Green
0.5Hz Blink/Amber
AC presents/Only +12VSB on (PS Off) Or PSU in
Smart standby mode
Amber
Green On
Off
AC cord unplugged, or AC power lost; with a second
power supply in parallel still with AC input power.
Amber
Power supply critical event causing a shutdown;
OTP, OCP, UVP, OVP, fan fail
Power supply firware updating
Power supply warning events where the
power supply continues to operate;
high power current, slow fan
