
3.7.2 Fan Board Connector Pin Definition
J3 and PWM Pin Header
| 1 | FAN1 PWM | 2 | GND | 
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| 3 | FAN2 PWM | 4 | GND | 
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| 5 | FAN3 PWM | 6 | GND | 
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| 7 | FAN4 PWM | 8 | GND | 
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| 9 | FAN5 PWM | 10 | GND | 
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| 11 | FAN6 PWM | 12 | GND | 
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| 13 | FAN PWM INPUT | 14 | KEY PIN | 
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| 15 | MUTE+ | 16 | GND | 
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FAN1~FAN6 Fan Connector Pin Out
1GND
2VDD +12V
3CLOCK
4PWM
J1, J2 Big 
1VDD +12V
2GND
3GND
4VDD +5V
| 66 | Chapter 3: Replacing  | 
