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Item
Description
3
Health LED
4
Power On/Standby button and
system power LED
1
When all four LEDs described in this table flash simultaneously, a power fault has occurred.
2
To identify components in a degraded or critical state, see the Systems Insight Display LEDs, check iLO/BIOS logs, and reference the
server troubleshooting guide.
3
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.
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
System board
Processor
Memory
Riser board PCIe slots
FlexibleLOM
Storage controllers
System board PCIe slots
Power backplane or storage backplane
Power supply
Systems Insight Display LEDs
The Systems Insight Display LEDs represent the system board layout. The display enables diagnosis with the access panel
installed.
Status
1
Solid green = Normal.
Flashing green = iLO is rebooting.
Flashing amber = System degraded.
Flashing red = System critical.
Solid green = System on.
1
Flashing green = Performing power on sequence.
Solid amber = System in standby.
Off = No power present.
2
3
LED behavior
1 flash
2 flashes
3 flashes
4 flashes
5 flashes
6 flashes
7 flashes
8 flashes
9 flashes
Component identification
12
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