Intel 5000 Series User Manual

Intel® 5000 Series Chipsets Server Board Family Datasheet System Management
Revision 1.1
Intel order number D38960-004
117
4.13.9 Processor Thermal Control Monitoring (Prochot)
The BMC monitors processor thermal control monitoring for each processor. This functionality is
provided by the National Semiconductor* LM94 system management controller device, which
provides a reading of the percentage of time that the processor ProcHot signal is asserted over
a given measurement window. The BMC implements this as a threshold sensor on a per-
processor basis.
4.13.10 CPU Population Error Sensor
The only processor population check that the BMC does is to verify that a processor is installed
in slot 1. The hardware does not allow the server to power up in this state.
At BMC initialization, this sensor is first set to a de-asserted state. The BMC then checks for
CPU population errors and sets the new value accordingly. If an error is detected and the SDR
is so configured, a SEL event will be logged. The BMC checks for this fault condition and
updates the sensor state 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. BMC beep codes are listed in
Table
39.
Note: This sensor is an auto-re-arm sensor but is not re-armed at system DC power-on or for
system resets. The correct way to clear this sensor state is to correct the problem by AC
powering down the server, installing a processor into slot 1, then AC powering on the server.

Intel 5000 Series Specifications

General

Brand	Intel
Model	5000 Series
Category	Server Board
Language	English