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					Originally Posted by  mikels
					 
				 
				 
E67 controller has 3 fan output drivers - however, when used with PWM fan control, only one of those outputs is utilized.  It provides a PWM output at frequency specific to the fan driver controller.  I've not measured voltage based on PWM % output to determine what way the voltage goes based on desired output. 
			
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 Looking at the E67 pinout I see the 3 different fan terrminals:
FAN1 J3-49
FAN2 J1-54
FAN3 J1-41
Which one is used when using the PWM fan control?