Sun Microsystems Sun Fire V440 Parts Installation And Removal Manual page 18

Power Supply Status LEDs
Each power supply has its own status LEDs.
Each power supply LED has a corresponding LED on the back panel.
Listed from top to bottom, the power supply LEDs operate as described in the
following table.
TABLE 1-3
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6 Sun Fire V440 Server Parts Installation and Removal Guide • July 2003
Power Supply LEDs
Name Description
OK-to- This blue LED lights when it is safe to remove and replace the
Remove power supply. This LED is lit by ALOM command and only
lights when the other power supply is functioning correctly.
Service This amber LED lights to indicate a power supply fault. If a
Required power supply Service Required LED is lit, the system Service
Required LED is also lit.
Power OK This green LED is lit when the power supply is on and
outputting regulated DC power within specified limits.
Standby This green LED is lit when AC input power is present. This
Available LED is lit when the corresponding AC cable is plugged into a
power source and the power supply is functioning correctly,
regardless of system power status.
Power supply 0 LEDs
Power supply 1 LEDs