4. Names and Functions of Parts
Express5800/R120h-2M User’s Guide
37
Chapter 1 General Description
(1) UID switch function
When the server does not turn on, the UID switch can be used to display Server Health Summary.
(2) Power failure LED
The following table shows a list on power failure LEDs and affected subsystems. Not all power failures are
applied on all servers
Subsystem
LED status
Motherboard Flashes
once
Processor Flashes
twice
Memory
Flashes 3 times
Riser card board PCIe slot
Flashes 4 times
LOM card
Flashes 5 times
RAID controller/SAScontroller
Flashes 6 times
Motherboard PCIe slot
Flashes 7 times
Power backplane or storage backplane
Flashes 8 times
Power Supply Unit
Flashes 9 times
When the STATUS LED on the front panel lights in amber or red, it indicates that an event has occurred on the
server. For details, refer to
(3) Combined LED descriptions in the next section.