Cpu And System Fan Connectors - VIA Technologies VB7009 User Manual

2.2.6. CPU and System Fan Connectors

There are two fan connectors on board: one for the CPU and one for the
chassis. The fan connector for the CPU is labeled as "CPUFAN1" and the fan
connector for the system is labeled as "SYSFAN1". The fans provide variable
fan speeds controlled by the BIOS. The pinout of the fan connectors is shown
below.
Figure 18 Figure 18: Fan connectors : Fan connectors
Figure Figure 18 18 : Fan connectors : Fan connectors
CPU fan (C (C (C (CPUFAN1 CPU fan PUFAN1) ) ) )
CPU fan CPU fan PUFAN1 PUFAN1
Pin Pin Signal Signal
Pin Pin Signal Signal
1 F_IO2 / Fan speed detection
2 F_PWM2 / Fan speed control
3 GND
System fan (SYSFAN1) System fan (SYSFAN1)
System fan (SYSFAN1) System fan (SYSFAN1)
Pin Pin Signal Signal
Pin Pin Signal Signal
1 F_IO1 / Fan speed detection
2 F_PWM1 / Fan speed control
3 GND
Table Table 14 14: Fan connector pinouts : Fan connector pinouts
Table Table 14 14 : Fan connector pinouts : Fan connector pinouts
VB7009 User Manual VB7009 User Manual
VB7009 VB7009 User Manual User Manual
CPUFAN1
1
SYSFAN1
1
24