Figure 48. High-Level Fan Speed Control Process - Intel S2600KPFR Product Specifications

Technical Product Specification
Front panel temperature sensor

Baseboard temperature sensors

CPU DTS-Spec margin sensors

DIMM thermal margin sensors

Exit air temperature sensor

Global aggregate thermal margin sensors

SSB (Intel ® C610 Series Chipset) temperature sensor

On-board Ethernet controller temperature sensors (support for this is specific to the

Ethernet controller being used)
Add-in Intel

Power supply thermal sensors (only available on PMBus*-compliant power supplies)

A simple model is shown in the following figure which gives a high level graphic of the fan
speed control structure creates the resulting fan speeds.
Policy: CLTT,
Acoustic/Performance,
Auto-Profile
configuration
Front Panel
Processor
Margin
(Chipset, Temp,
9.3.14.5.1 Processor Thermal Management
Processor thermal management utilizes clamp algorithms for which the Processor DTS-Spec
margin sensor is a controlling input. This replaces the use of the (legacy) raw DTS sensor
reading that was utilized on previous generation platforms. The legacy DTS sensor is retained
only for monitoring purposes and is not used as an input to the fan speed control.
Revision 1.37
® SAS/IO module temperature sensor(s) (if present)
Memory
Throttle
Settings
Resulting Fan
Speed
Other Sensors
etc..)

Figure 48. High-level Fan Speed Control Process

Platform Management
Intrusion
Fan Failure
Power Supply
Failure
Policy
Events
Sensor
System Behavior
119