Intel
®
Server System R1000WT 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. 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.
Color
State
Off
System is
not
operating
Green
Solid on
Green
~1 Hz blink
Rev 2.2
Table 4. System Status LED State Definitions
Criticality
•
Not ready
•
•
Ok
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 is powered off (AC and/or DC).
System is in EuP Lot6 Off Mode.
System is in S5 Soft-Off State.
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
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.
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 will be in this
state 6-8 seconds after BMC reset while it pulls the Linux* image into
flash.
Description
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