2-5
Power Supply Unit (PSU) LED
Color
Off
Green
Green
Amber
Amber
Status
--
No AC power to all power supplies
Blinking
AC present / Only +12VSB on (PS off) or PSU in Smart Standby Mode
0.5Hz
Blinking
Power supply firmware update
2Hz
AC cord unplugged / AC power lost but a second power supply in
parallel still having AC input power
On
Power supply critical events that cause a shutdown, such as: OTP,
OCP, UVP, OVP and fan failure
Power supply warning events where the power supply continues to
Blinking
0.5Hz
operate, such as: high temperature, high power, high current, slot fan
PSU LED
Description
- 21 -
System Appearance