Intel® 5000 Series Chipsets Server Board Family Datasheet System Management
Revision 1.1
Intel order number D38960-004
113
4.12.1 Signal Generation
The BMC generates an NMI pulse under certain conditions. The BMC-generated NMI pulse
duration is at least 30 ms. After an NMI has been generated by the BMC, the BMC will not
generate another until the system has been reset or powered down. BMC NMI generation can
be disabled in the system BIOS. The following will cause the BMC to generate an NMI pulse:
The front panel diagnostic interrupt button has been pressed. See section 4.5.4.4 for
more details.
A PEF table entry matching an event where the filter entry indicates a diagnostic
interrupt action.
Watchdog timer pre-timeout expired and a NMI / diagnostic interrupt pre-timeout action
is enabled.
4.13 Processor Sensors
The BMC provides IPMI sensors for processors and associated components, such as voltage
regulators and fans. Most of these sensors are implemented on a per-processor basis.
Table 40. Processor Sensors
Sensor Type Per-Proc
Socket
Description
Processor Status Yes Processor presence and fault state
Processor Temperature Yes Temperature from processor itself. This either
represents the T
DIODE temperature or platform
environmental control interface (PECI) temperature,
depending on processor family
Processor VRD Over-temperature
Indication
Yes Discrete sensor that indicates a processor VRD has
crossed an upper operating temperature threshold
Processor Voltage Yes Threshold sensor for voltage from processor voltage
regulator
Processor Voltage Limit Fault Yes Discrete sensor that indicates a processor voltage is out
of range
Processor Fan Speed Yes Speed of processor fan-sink (not always present)
Processor Thermal Control (Prochot) Yes Percentage of time a processor is throttling due to
thermal conditions
CPU Population Error No Improper socket population. This means slot 1 is empty.
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