• Critical threshold crossed – Voltage, temperature (including HSBP temp), input
power to power supply, output current for main power rail from power supply and
PROCHOT (Therm Ctrl) sensors.
• VRD Hot asserted.
• Minimum number of fans to cool the system not present or failed.
• Hard drive fault.
• Power Unit Redundancy sensor – Insufficient resources offset (indicates not
enough power supplies present).
• In non-sparing and non-mirroring mode, if the threshold of correctable errors is
crossed within the window.
• Invalid firmware image detected during boot up or firmware update.
• Processor CATERR signal asserted.
• MSID mismatch detected (CATERR also asserts for this case).
• CPU 0 is missing.
• Processor Thermal Trip.
• No power good – power fault.
• DIMM failure when there is only 1 DIMM present and hence no good memory
present.
• Runtime memory uncorrectable error in non-redundant mode.
• DIMM Thermal Trip or equivalent.
• SSB Thermal Trip or equivalent.
• Processor ERR2 signal asserted.
• BMC/Video memory test failed. (Chassis ID shows blue/solid-on for this condition.)
• Both uBoot BMC firmware images are bad. (Chassis ID shows blue/solid-on for this
condition.)
• 240 VA fault.
• Fatal Error in processor initialization:
o Processor family not identical
o Processor model not identical
o Processor core/thread counts not identical
o Processor cache size not identical
o Unable to synchronize processor frequency
o Unable to synchronize QPI link frequency
• BMC fail authentication with non-recoverable condition, system hang at T-1; boot
PCH only, system hang; PIT failed, system lockdown.