User manual

27 Chapter 4
Table 4.9: J1, External buzzer
Pin 1 Buzzer Pin 2 +5V
Table 4.10: SW1, Fan number select switch
Pin 1 GND Pin 5 GND
Pin 2 FAN_SEL1 Pin 6 FAN_SEL3
Pin 3 GND Pin 7 GND
Pin 4 FAN_SEL2 Pin 8 RESET