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Connectors, switches, and LEDs 122
Status LED indicators
The Systems Insight Display (SID) panel on the front panel provides a quick visible indication of system
status. The embedded NIC 1/2 and management NIC ports on the rear panel have their own
activity/link LED indicators to reflect their status. The status LED indicators aid in problem diagnosis by
indicating the status of system components and operations of the server.
External LED indicators
Item Function Status Status description
1 Unit identification Blue A UID button has been pressed.
Green Normal operation
Flashing amber A pre-failure system threshold has been breached.
This may be any of the following:
• At least one fan failure
• At least one of the temperature sensors reached
critical level (system or processor thermal
sensors)
• At least one memory module error
• A power supply unit error has occurred.
Check the status of these components to determine
problem.
2 Internal health
Flashing red A critical system error has occurred. This may
indicate a failure in the processor, memory, system
fan or expansion board. Check the status of these
components to determine problem.