Technical Product Specification

Intel® Server Board S2600IP and Intel® Workstation Board W2600CR TPS Platform Management Overview
Revision 1.4 Intel order number G34153-004 59
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.
The BMC provides system status indication to the front panel LEDs for processor fault
conditions shown in Table 17.
CPU Presence status is not saved across AC power cycles and therefore will not generate a de-
assertion after cycling AC power.
Table 17. 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
SM BIOS uncorrectable CPU-complex error
Not Supported
7
Processor presence detected
BMC
8
Processor disabled
Not Supported
9
Terminator presence detected
Not Supported
Note: Fault is not reflected in the processor status sensor.
4.3.4.1.1 Processor Presence
Upon BMC initialization, which occurs when AC power is applied or the BMC is reset, the
processor presence offset is initialized to the deasserted state and then the BMC checks to see
if the processor is present and sets the presence offset accordingly.
This state is updated at each DC power-on and at system resets. The net effect of this is that
there should be one event logged at BMC startup for processor presence for each installed
processor, assuming the SDR is configured to generate the event. No additional events for
processor presence are expected unless the sensor is manually re-armed using an IPMI
command or a processor is removed or inserted. Note that removal and insertion should only
occur when AC power is removed from the system so it is not expected that a SEL entry will be
seen for this specific occurrence.
4.3.4.2 Processor Population Fault (CPU Missing) Sensor
The BMC supports a Processor Population Fault sensor for monitoring for the condition in which
processor slots are not populated as required by the platform HW to allow power-on of the
system.