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
FlexibleLOM 5 flashes
Removable HPE Smart Array SR Gen10 controller 6 flashes
System board PCIe slots 7 flashes
Power backplane or storage backplane 8 flashes
Power supply 9 flashes
Rear panel components
Item
Description
1 Slot 1 PCIe4 x16 (16, 8, 4, 1)
1
2 Slot 2 PCIe4 x16 (16, 8, 4, 1)
1
3 Slot 3 PCIe4 x16 (16, 8, 4, 1)
1
(optional)
4 Flex Slot power supply 2 (hot-plug, optional)
5 Flex Slot power supply 1 (hot-plug)
6 Serial port (optional)
7 USB 30 ports (2)
8 iLO Management port
9 Video port
10 Small OCP NIC 30 slot (optional)
Component identification 11