4 UID button/LED
Solid blue = Activated
Flashing blue:
1 flash per second = Remote management or firmware upgrade in
progress
4 flashes per second = iLO manual reboot sequence initiated
8 flashes per second = iLO manual reboot sequence in progress
1 fast flash and then off for 3 seconds = iLO Service Port status is
Complete
4 medium flashes and then off for 1 second = iLO Service Port status is
Busy
8 fast flashes and then off for 1 second = iLO Service Port status is
Error
Off = Deactivated
5 Front drive health/thermal LED
Solid green = Drives supported by the SAS expander are functional.
Solid amber = Failure or predictive failure of one or more drives supported
by the SAS expander
Off = No power present
ItemItem DescriptionDescription StatusStatus
If the health LED indicates a degraded or critical state, review the system IML or use iLO to review the system health status.
When these four LEDs flash simultaneously, a power fault has occurred.
Facility power is not present, power cord is not attached, no power supplies are installed, power supply failure has occurred, or the
front I/O cable is disconnected.
This LED behavior applies to all front drives, as well as to the rear drives connected to the drive cage 2 backplane.
UID button functionalityUID button functionality
The UID button can be used to display the Server Health Summary when the server will not power on. For more information, see the
latest HPE iLO 5 User Guide on the Hewlett Packard Enterprise websiteHewlett Packard Enterprise website .
Front panel LED power fault codesFront panel LED power fault codes
The following table provides a list of power fault codes, and the subsystems that are affected. Not all power faults are used by all
servers.
SubsystemSubsystem LED behaviorLED behavior
System board 1 flash
Processor 2 flashes
Memory 3 flashes
Riser board PCIe slots 4 flashes
FlexibleLOM 5 flashes
Storage controller 6 flashes
1
4
4
2
1
2
3
4
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