Item Description Status
3 NIC status LED
Solid green = Link to network
Flashing green (1 flash per second) = Network active
O = No network activity
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
O = Deactivated
1
If the system power LED is o, verify the following conditions:
• Facility power is present.
• The power supply is installed and is working correctly.
• The power cord is attached and is connected to a power source.
• The front I/O cable is connected.
2
If the health LED indicates a degraded or critical state, review the system Integrated Management Log (IML) or use HPE iLO to review
the system health status.
If all LEDs described in this table flash simultaneously, a power fault has occurred. For more information, see "Power fault
LEDs".
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 iLO user guide on the Hewlett Packard Enterprise website (https://www.hpe.com/support/ilo-
docs).
Front panel LED power fault codes
The following table provides a list of power fault codes, and the subsystems that are aected. 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
Component identification 116
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