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Platform Management OverviewIntel® Server Board S2600IP and Intel® Workstation Board W2600CR TPS
4.3.3
BMC System Management Health Monitoring
The BMC tracks the health of each of its IPMI sensors and report failures by providing a "BMC
FW Health" sensor of the IPMI 2.0 sensor type Management Subsystem Health with support for
the Sensor Failure offset. Only assertions should be logged into the SEL for the Sensor Failure
offset. The sensor number of the failed sensor is provided in event data byte 2, as per the IPMI
2.0 Specification. The BMC Firmware Health sensor asserts for any sensor when 10
consecutive sensor errors are read. These are not standard sensor events (that is, threshold
crossings or discrete assertions). These are BMC Hardware Access Layer (HAL) errors like I2C
NAKs or internal errors while attempting to read a register. If a successful sensor read is
completed, the counter resets to zero.
IPMI Sensor Characteristics
1. Event reading type code: 6Fh (Sensor specific)
2. Sensor type code:
3. Rearm type:
If this sensor is implemented, then the following sensor-specific offsets are supported.
Offset
04h
4.3.4
Processor Sensors
The BMC provides IPMI sensors for processors and associated components, such as voltage
regulators and fans. The sensors are implemented on a per-processor basis.
Sensor Name
Processor Status
Digital Thermal Sensor
Processor VRD Over-Temperature
Indication
Processor Voltage
Processor Thermal Control (Prochot)
4.3.4.1
Processor Status Sensors
The BMC provides an IPMI sensor of type processor for monitoring status information for each
processor slot. If an event state (sensor offset) has been asserted, it remains asserted until one
of the following happens:
1. A Rearm Sensor Events command is executed for the processor status sensor.
2. AC or DC power cycle, system reset, or system boot occurs.
56
28h (Management Subsystem Health)
Auto
Table 14. Supported BMC FW Health Sensor Offsets
Description
Sensor failure
Table 15. Processor Sensors
Per-Processor
Socket
Yes
Yes
Yes
Yes
Yes
Intel order number G34153-003
Event Logging
Assertion and deassertion
Description
Processor presence and fault state
Relative temperature reading by means of PECI
Discrete sensor that indicates a processor VRD has
crossed an upper operating temperature threshold
Threshold sensor that indicates a processor power-good
state
Percentage of time a processor is throttling due to
thermal conditions
Revision 1.1
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