Fujitsu Intel Xeon X3210 S26361-F3239-E321 Datenbogen

Quad-Core Intel® Xeon® Processor 3200 Series Datasheet

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The boxed processor fan heatsink is designed to operate continuously at full speed to 
allow maximum user control over fan speed. The fan speed can be controlled by 
hardware and software from the motherboard. This is accomplished by varying the duty 
cycle of the CONTROL signal on the 4th pin (see 

). The motherboard must 

have a 4-pin fan header and must be designed with a fan speed controller with PWM 
output and Digital Thermometer measurement capabilities. For more information on 
specific motherboard requirements for 4-wire based fan speed control see the Quad-
Core Intel

 Processor 3200 Series Thermal and Mechanical Design Guidelines.

The Internal chassis temperature should be kept below 39ºC. Meeting the processor's 
temperature specification (see 

) is the responsibility of the system integrator. 

The motherboard must supply a constant +12 V to the processor's power header to 
ensure proper operation of the fan for the boxed processor. See 

 for specific 

requirements.