Item Description Status
3 NIC status LED
1
Solid green = Link to network
Flashing green (1 Hz/cycle per sec) = Network active
Off = No network activity
4 UID button/LED
1
Solid blue = Activated
Flashing blue:
• 1 Hz/cycle per sec = Remote management or
firmware upgrade in progress
• 4 Hz/cycle per sec = iLO manual reboot sequence
initiated
• 8 Hz/cycle per sec = 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
1
When all four LEDs described in this table flash simultaneously, a power fault has occurred.
2
Facility power is not present, power cord is not attached, no power supplies are installed, power supply failure has
occurred, or the power button cable is disconnected.
3
If the health LED indicates a degraded or critical state, review the system IML or use iLO to review the system health
status.
UID 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 website.
Front 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.
Subsystem LED behavior
System board 1 flash
Processor 2 flashes
Memory 3 flashes
Riser board PCIe slots 4 flashes
Table Continued
12 Component identification
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