Intel
®
Server System R2000WT Product Family System Integration and Service Guide
109
Appendix C: System Status LED Operating States and Definition
The server board includes a bi-color System Status LED. The System Status LED on the server board is tied
directly to the System Status LED on the front panel. This LED indicates the current health of the server.
Possible LED states include solid green, blinking green, blinking amber, and solid amber.
When the server is powered down (transitions to the DC-off state or S5), the BMC is still on standby power
and retains the sensor and front panel status LED state established before the power-down event.
When AC power is first applied to the system, the status LED turns solid amber and then immediately
changes to blinking green to indicate that the BMC is booting. If the BMC boot process completes with no
errors, the status LED will change to solid green.
Table 4. System Status LED State Definitions
Color
State
Criticality
Description
Off
System is
not
operating
Not ready
•
System is powered off (AC and/or DC).
•
System is in EuP Lot6 Off Mode.
•
System is in S5 Soft-Off State.
Green
Solid on
Ok
Indicates that the System is running (in S0 State) and its
status is ‘Healthy’. The system is not exhibiting any errors.
AC power is present and BMC has booted and
manageability functionality is up and running.
After a BMC reset, and in conjuction with the Chassis ID
solid ON, the BMC is booting Linux*. Control has been
passed from BMC uBoot to BMC Linux* itself. It will be in
this state for ~10-~20 seconds
Green
~1 Hz
blink
Degraded -
system is
operating in a
degraded state
although still
functional,
or
system is
operating in a
redundant state
but with an
impending
failure warning
System degraded:
•
Redundancy loss such as power-supply or fan. Applies only if
the associated platform sub-system has redundancy
capabilities.
•
Fan warning or failure when the number of fully operational
fans is less than minimum number needed to cool the
system.
•
Non-critical threshold crossed – Temperature (including
HSBP temp), voltage, input power to power supply, output
current for main power rail from power supply and Processor
Thermal Control (Therm Ctrl) sensors.
•
Power supply predictive failure occurred while redundant
power supply configuration was present.
•
Unable to use all of the installed memory (more than 1 DIMM
installed).
•
Correctable Errors over a threshold and migrating to a spare
DIMM (memory sparing). This indicates that the system no
longer has spared DIMMs (a redundancy lost condition).
Corresponding DIMM LED lit.
•
In mirrored configuration, when memory mirroring takes
place and system loses memory redundancy.
•
Battery failure.
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