Item
Description
Status
Definition
Flashing blue
• 1 flash per second = Remote management
or firmware upgrade in progress
• 4 flashes per second = iLO manual soft
reboot sequence initiated
• 8 flashes per second = iLO manual hard
reboot sequence in progress
Off
Deactivated
If the Health LED indicates a degraded or critical state, review the system IML or use iLO to review the system health status.
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
FlexibleLOM
5 flashes
Storage controllers
6 flashes
System board PCIe slots
7 flashes
Power backplane or storage backplane
8 flashes
Power supply
9 flashes
Chassis UID LED
The chassis UID LED is used to locate a particular chassis when it is deployed in a dense rack with other equipment. When
the UID LED of any of the servers installed in the chassis is activated, the chassis UID LED also flashes blue. Activating the
UID LED allows an onsite technician to quickly identify a chassis for maintenance tasks.
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.
Component identification
81