Appendix C: System Status Led Operating States And Definition; Table 4. System Status Led State Definitions - Intel P4304XXMFEN2 Service Manual

Intel ® Server Chassis P4304XXMFEN2/P4304XXMUXX Product Family System Integration and Service Guide

Appendix C: System Status LED Operating States and Definition

The server board includes a bi-color System Status LED which 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 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 changes to solid green. 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.
Color State
Off System is
not
operating
Green Solid on
Green ~1 Hz blink
Amber ~1 Hz blink

Table 4. System Status LED State Definitions

Criticality Description
Not ready System is powered off (AC and/or DC).
System is in EuP Lot6 Off Mode.
System is in S5 Soft-Off State.
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 in conjunction with the Chassis ID solid ON, the BMC is
booting Linux*. Control has passed from BMC uBoot to BMC Linux* itself.
It remains in this state for ~10-~20 seconds.
Degraded - System degraded:
System is Redundancy loss such as power supply or fan. Applies only if the
operating in a associated platform subsystem has redundancy capabilities.
degraded state Fan warning or failure when the number of fully operational fans is less
although still than minimum number needed to cool the system.
functional or Non-critical threshold crossed – Temperature (including HSBP temp),
system is voltage, input power to power supply, output current for main power rail
operating in a from power supply and Processor Thermal Control (Therm Ctrl) sensors.
redundant state Power supply predictive failure occurred while redundant power supply
but with an configuration was present.
impending failure Unable to use all of the installed memory (more than 1 DIMM installed).
warning 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.
BMC executing in uBoot. (Indicated by chassis ID blinking at 3Hz). System
in degraded state (no manageability). BMC uBoot is running but has not
transferred control to BMC Linux*. Server remains in this state 6-8
seconds after BMC reset while it pulls the Linux* image into flash.
BMC Watchdog has reset the BMC.
Power Unit sensor offset for configuration error is asserted.
HDD HSC is off-line or degraded.
Non-critical - Non-fatal alarm – system is likely to fail:
System is Critical threshold crossed – Voltage, temperature (including HSBP temp),
operating in a input power to power supply, output current for main power rail from
degraded state power supply, and PROCHOT (Therm Ctrl) sensors.
with an VRD Hot asserted.
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