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风扇自动控制接口定义

风扇自动控制接口定义. 2013.11.27. 接口定义. Pin1 ： FAN_PWM ( 风扇控制 ) Pin2 ： GND ( 地 ) Pin3 ： GND ( 地 ) Pin4 ： NC ( 没有信号连接 ) Pin5 ： Key ( 防呆 ) Pin6 ： NC( 没有信号连接 ). 俯视图. 主板 CPU 4Pin FAN 的定义. Pin1 ： GND ( 地 ) Pin2 ： 12V ( 电源 ) Pin3 ： FAN_TACH ( 转速侦测 ) Pin4 ： FAN_PWM ( 风扇控制 ). 俯视图.

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风扇自动控制接口定义

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  1. 风扇自动控制接口定义 2013.11.27

  2. 接口定义 Pin1：FAN_PWM (风扇控制) Pin2：GND (地) Pin3：GND (地) Pin4：NC (没有信号连接) Pin5：Key (防呆) Pin6： NC(没有信号连接) 俯视图

  3. 主板CPU 4Pin FAN的定义 Pin1：GND (地) Pin2：12V (电源) Pin3：FAN_TACH (转速侦测) Pin4：FAN_PWM (风扇控制) 俯视图

  4. 主板CPU FAN和小板接口的连接

  5. 风扇调速说明 5pin接口空出，即关闭风扇调速功能，风扇全速运转； 线将风扇控制板端的pin1和主板fan connector的pin4连接，风扇控制板端的pin2和主板fan connector的pin1连接，即可开启风扇转速自动调节功能。

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