Datasheet

Intel® Server Board S2600CW Family TPS Intel® Server Board S2600CW Platform Management

Revision1.11

5.3.10.5 Processor Voltage Regulator (VRD) Over-Temperature Sensor

The BMC monitors processor VRD_HOT# signals. The processor VRD_HOT# signals are routed

to the respective processor PROCHOT# input in order to initiate throttling to reduce processor

power draw, therefore indirectly lowering the VRD temperature.

There is one processor VRD_HOT# signal per CPU slot. The BMC instantiates one discrete IPMI

sensor for each VRD_HOT# signal. This sensor monitors a digital signal that indicates whether

a processor VRD is running in an over-temperature condition. When the BMC detects that this

signal is asserted, it will cause a sensor assertion which will result in an event being written

into the sensor event log (SEL).

5.3.10.6 Inlet Temperature Sensor

Each platform supports a thermal sensor for monitoring the inlet temperature. There are four

potential sources for inlet temperature reading.

5.3.10.7 Baseboard Ambient Temperature Sensor(s)

The server baseboard provides one or more physical thermal sensors for monitoring the

ambient temperature of a board location. This is typically to provide rudimentary thermal

monitoring of components that lack internal thermal sensors.

5.3.10.8 Server South Bridge (SSB) Thermal Monitoring

The BMC monitors the SSB temperature. This is instantiated as an analog (threshold) IPMI

thermal sensor.

5.3.10.9 Exit Air Temperature Monitoring

The BMC synthesizes a virtual sensor to approximate system exit air temperature for use in fan

control. This is calculated based on the total power being consumed by the system and the

total volumetric airflow provided by the system fans. Each system shall be characterized in

tabular format to understand total volumetric flow versus fan speed. The BMC calculates an

average exit air temperature based on the total system power, front panel temperature, the

volumetric system airflow (cubic feet per meter or CFM), and altitude range.

This sensor is only available on systems in an Intel chassis. The Exit Air temp sensor is only

available when PMBus* power supplies are installed.

5.3.10.10 Ethernet Controller Thermal Monitoring

The Intel

Ethernet Controller I350-AM4 and Intel

Ethernet Controller 10 Gigabit X540

support an on-die thermal sensor. For baseboard Ethernet controllers that use these devices,

the BMC monitors the sensors and uses this data as an input to the fan speed control. The

BMC instantiates an IPMI temperature sensor for each device on the baseboard.