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

Relion 1900e/2900e Manual
Revision 1.0 68
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.
Table 21. Processor Sensors
Sensor Name
Per Processor
Socket
Description
Processor Status
Yes
Processor presence and fault state
Digital Thermal Sensor
Yes
Relative temperature reading by means of PECI
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 that indicates a processor power-
good state
Processor Thermal Control
(PROCHOT#)
Yes
Percentage of time a processor is throttling due to
thermal conditions
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.
Table 22. Processor Status Sensor Implementation
Offset
Processor Status
Detected By
0
Internal error (IERR)
Not Supported
1
Thermal trip
BMC
2
FRB1/BIST failure
Not Supported
3
FRB2/Hang in POST failure
BIOS
1
4
FRB3/Processor startup/initialization failure (CPU fails to start)
Not Supported
5
Configuration error (for DMI)
BIOS
1
6
SMBIOS uncorrectable CPU-complex error
Not Supported
7
Processor presence detected
BMC
8
Processor disabled
Not Supported
9
Terminator presence detected
Not Supported
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.