The System Insight Display improves serviceability by enabling you to look in a single location for the
LEDs that provide failing CRU locating/mapping information. These amber LEDs are only lit when a
failure occurs; otherwise, they are off. The System Insight Display is located on the front panel of the
server. A diagnostic LED exists for each CRU in the system, including all DIMMs.
on page 94 shows the System Insight Display LEDs.
Table 19: SID LED States
Definition
Flash Rate
LED Color
CRU health is assumed good.
LED Off
Off
CRU health last known to be bad.
Steady
Amber
NOTE:
The Power Supply LED illuminates only when a failure or fault is detected in a power supply. Loss of
AC power to a power supply will generate a SEL entry, but does not result in the Power Supply LED
illuminating.
FRU and CRU health LEDs
In addition to the front panel diagnostic LEDs, CRUs provide additional diagnostic capability through
LEDs, whose order or layout is product dependent.
NOTE:
If multiple error conditions occur, all applicable CRU lights are activated. In such a case, the most
critical error determines the front panel color.
System Event Log LED
The server has this LED for the following reasons:
• To carry forward the ATTENTION functionality of legacy Integrity and HPE 9000 front panel designs
• To give the customer an indication of whether the system is up or down (the health LED does not tell
the user if the system is booted.)
• To cover the wide range of faults for which software/firmware is not 100% sure that a CRU must be re-
seated/replaced. (The system health LED does not illuminate unless software/firmware can make a
solid determination that a CRU must be re-seated/replaced.)
This LED indicates the overall health state of the system, including the state of system firmware and the
OS. If the LED is red, the system needs attention, and the event logs must be examined for details of the
issue.
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Troubleshooting
