Intel® Server Board S2600IP and Intel® Workstation Board W2600CR TPSPlatform Management Overview
Revision 1.1 57
Intel order number G34153-003
The BMC provides system status indication to the front panel LEDs for processor fault
conditions shown in Table 16.
CPU Presence status is not saved across AC power cycles and therefore will not generate a de-
assertion after cycling AC power.
Table 16. Processor Status Sensor Implementation
FRB2/Hang in POST failure
FRB3/Processor startup/initialization failure (CPU fails to start)
Configuration error (for DMI)
SM BIOS uncorrectable CPU-complex error
Processor presence detected
Terminator presence detected
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.
At BMC startup, the BMC will check for the fault condition and set the sensor state accordingly.
The BMC also checks for this fault condition at each attempt to DC power-on the system. At
each DC power-on attempt, a beep code is generated if this fault is detected. Please refer Table
9 (BMC Beep Codes) for beep code details.
The following steps are used to correct the fault condition and clear the sensor state:
1. AC power down the server.
2. Install the missing processor into the correct slot.
3. AC power on the server.
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