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3 Wire Fan, Header pin

Adam Nowak

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I have an M8P and I'm trying to wire a 3 wire brushless fan to the fan 4 header. I know you can run 3 wire fans on 4 wire PWM headers I just don't know what pin you are supposed to use as the output pin. The pinout states PE4,PC13,VF4,GND. PC13 is were the tach wire connects, PE4 is unused. So what pin should I configure as the output pin? I just need on and off control, speed control not required.

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