4. Names and Functions of Parts
Express5800/R120h-2M (2nd-Gen) User’s Guide
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Chapter 1 General Description
(1) UID switch function
To display Server Health Summary, press the UID switch. To restart iLO, press and hold the UID switch until
the UID lamp starts blinking fast in blue (4 times per second).
Important
Do not restart iLO during the time from when the server starts up
until the OS startup is completed (including the execution of POST
(Power On Self Test)). Also, do not restart iLO during System
Utilities operations. Restarting iLO at the timing above may result in
an unexpected operation.
(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
(3) Status LED Panel (Systems Insight Display)
The Status LED Panel represents the layout of the parts on the motherboard. From these LED indicators, you
can diagnose suspected parts while the top cover is attached.
Procedure
1.
Push the panel and then pull it out.
2.
After pulling out the entire panel, turn back the panel to see the status of LED.