Intel S1400FP - 5.2.3 Processor Thermal Control Sensors

System Event Log Troubleshooting Guide for EPSD Platforms Based on Intel
®
Xeon
®
Processor E5 4600/2600/2400/1600/1400 Product Families
Cooling Subsystem
Revision 1.1 Intel order number G90620-002 53
Sensor
Number
Sensor Name
Next Steps
B3h
P2 DIMM Thrm Mrgn2
4. Ensure the air used to cool the system is within the thermal specifications for the system (typically below 35°C).
B4h
P3 DIMM Thrm Mrgn1
B5h
P3 DIMM Thrm Mrgn2
B6h
P4 DIMM Thrm Mrgn1
B7h
P4 DIMM Thrm Mrgn2
C8h
Agg Therm Mrgn 1
C9h
Agg Therm Mrgn 2
CAh
Agg Therm Mrgn 3
CBh
Agg Therm Mrgn 4
CCh
Agg Therm Mrgn 5
CDh
Agg Therm Mrgn 6
CEh
Agg Therm Mrgn 7
CFh
Agg Therm Mrgn 8
5.2.3 Processor Thermal Control Sensors
The BMC FW monitors the percentage of time that a processor has been operationally constrained over a given time window
(nominally six seconds) due to internal thermal management algorithms engaging to reduce the temperature of the device. This
monitoring is instantiated as one IPMI analog/threshold sensor per processor package.
If this is not addressed, the processor will overheat and shut down the system to protect itself from damage.
Table 41: Processor Thermal Control Sensors Typical Characteristics
Byte
Field
Description
11
Sensor Type
01h = Temperature
12
Sensor Number
78h = Processor 1 Thermal Control %
79h = Processor 2 Thermal Control %