Intel S2600CW - Figure 18. High-Level Fan Speed Control Process

Intel® Server Board S2600CW Platform Management Intel® Server Board S2600CW Family TPS
80 Revision 2.4
 SSB (Intel® C612 Series Chipset) temperature sensor
 On-board Ethernet controller temperature sensors (support for this is specific to the
Ethernet controller being used)
 On-board SAS controller temperature sensors
 CPU VR Temperature sensor
 DIMM VR Temperature sensor
 BMC Temperature sensor
 DIMM VRM Temperature sensor
A simple model is shown in the following figure which gives a high level graphic of the fan
speed control structure creating the resulting fan speeds.
Figure 18. High-level Fan Speed Control Process
5.3.14.6.1 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.
High Level FSC Structure
Policy: CLTT,
Acoustic /
Performance,
Altitude.
Front Panel
Processor
Margin
Resulting
Fan
Speed
RDIMM/UDIMM
Throttle Settings
Intrusion
Fan Failure
PS Failure
Other sensors
(Chipset, LM75, etc.)
Policy
Events
Sensors
System Behavior