Processor Sensors; Table 21. Processor Sensors; Table 22. Processor Status Sensor Implementation - Penguin Computing Relion 1900e Technical Manual

This is a manual re-arm sensor that is rearmed on system resets and power-on (AC or DC power on
transitions).
7.3.11

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#)
7.3.11.1 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.
The BMC provides system status indication to the front panel LEDs for processor fault conditions as listed in
following table.
CPU Presence status is not saved across AC power cycles and therefore will not generate a de-assertion after
cycling AC power.
Offset
0
1
2
3
4
5
6
7
8
9
Note:
1. Fault is not reflected in the processor status sensor.
7.3.11.2 Processor Population Fault (CPU Missing) Sensor
The BMC supports a Processor Population Fault sensor. This is used to monitor for the condition in which
processor sockets are not populated as required by the platform HW to allow power-on of the system.
Revision 1.0
Relion 1900e/2900e Manual

Table 21. Processor Sensors

Per Processor
Socket
Yes
Yes
Yes
Yes
Yes

Table 22. Processor Status Sensor Implementation

Processor Status
Internal error (IERR)
Thermal trip
FRB1/BIST failure
FRB2/Hang in POST failure
FRB3/Processor startup/initialization failure (CPU fails to start)
Configuration error (for DMI)
SMBIOS uncorrectable CPU-complex error
Processor presence detected
Processor disabled
Terminator presence detected
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
Detected By
Not Supported
BMC
Not Supported
BIOS 1
Not Supported
BIOS 1
Not Supported
BMC
Not Supported
Not Supported
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