Figure 7-4. Example Acoustic Fan Speed Control Implementation - Intel BX80570E8200 - Core 2 Duo 2.66 GHz Processor Design Manual

Intel® Quiet System Technology (Intel® QST)
Figure 7-4 shows the major connections for a typical implementation that can support
processors with Digital thermal sensor or a thermal diode. In this configuration a SST
Thermal Sensor has been added to read the on-die thermal diode that is in all of the
processors in the 775-land LGA packages shipped before the Intel Core™2 Duo
processor. With the proper configuration information the ME can be accommodate
inputs from PECI or SST for the processor socket. Additional SST sensors can be
added to monitor system thermal (see Appendix E for BTX recommendations for
placement). Consult the appropriate platform design guide for complete details on
implementation.

Figure 7-4. Example Acoustic Fan Speed Control Implementation

Intel has engaged with a number of major manufacturers of thermal / voltage sensors
to provide devices for the SST bus. Contact your Intel Field Sales representative for
the current list of manufacturers and visit their web sites or local sales representatives
for a part suitable for your design.
Thermal and Mechanical Design Guidelines 69