3
5
Power Supply LED
There is a single bi-color LED (green/amber) to indicate the power supply status.
Table 4-3
describes the different states of the LED.
Table 4-3
Power Supply LED States
LED State
Power Supply (PS) State
Off
No AC power to any PS.
Green
Output on and Ok.
Green, 1Hz blink
AC present (only 12VSB on). PS off or PS in cold redundant state.
Note
: This is the normal state for a redundant PS.
Green, 2Hz blink
PS firmware updating.
Amber
– PS critical event causing a shutdown/failure (OCP, OVP, fan failure) –
AC cord unplugged or AC power lost. A second power supply in parallel
still has AC input power.
Amber, 1Hz blink
PS warning events where the power supply continues to operate (high
temperature, high power, high current, slow fan).
Note:
The HPE Apollo kl20 server is only considered to be N+1 in the 200-240V range; the 100-127V
range requires both power supplies to be operating.
