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Ultra Enterprise Front Panet LED and Clock Status

Power LED Service LED Cycling LED Condition
off off off no power
off on off failure mode
off off on failure mode
off on on failure mode
on off off hung in POST/OBP or OS
on off on hung in OS
on on off hung in POST/OBP
hung in OS/failed component
on on on hung in POST/OBP
hung in OS/failed component
on off flashing OS running normally
on on flashing OS running with failed component
on flashing off slow flash = POST
fast flash=OBP
on flashing on OS or OBP error


LED Name Location Note
Power LED Left Should always be on. If all three LEDs are off, suspect a power problem. If this LED is in any other state than on and steady, it indicates a problem.
Service LED Middle This LED should be off in normal operation. If on, a component is in an error state and you should check check individual board LEDs. A lit service LED does not imply there is an OS-related problem.
Cycling LED Right This LED should be flashing -- this is the normal state.

Ultra Enterprise CPU/Memory, I/O, and Disk Board LED Status

Power LED Service LED Cycling LED Condition
off off off board no power
off on off low power mode - unpluggable
off off on failure mode
off on on failure mode
on off off hung in POST/OBP of OS
on off on hung in OS
on on off hung in POST/OBP
hung in OS and failed component on board
on on on hung in POST/OBP
hung in OS/failed component on board
on off flashing OS running normally
on on flashing OS running normally/failed component on board
on flashing off slow flash = POST
fast flash = OBP
on flashing on OS or OBP error
Notes: Low Power Mode - If the status of the LEDs on the board is off-on-off, this means the board is in low power mode. This occurs when the board is disabled because it failed POST, or if the board was just inserted. Low power mode is the only state in which you may unplug the board while the system is running.
Disk Boards - The amber LED on disk boards installed in Ultra Enterprise servers will remain on when the Ultra Enterprise server is running Solaris 2.6 5/98 or above. This is normal, and it indicates the board is in low power mode (the board can be removed from the system provided the disks have been idled).


Green LED Yellow LED Condition
off off No AC input or keyswitch is turned off
on off normal operation
on on Fan failure or one or more voltages out of specification
off on One or more DC outputs failed, or voltages out of specification, or system in low power state

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