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V1.0 Vig820S Motherboard Manual
22
Fan Power Connectors: CPU_FAN, SYS_FAN
The fan power connectors support system cooling fan with +12V. When connecting the
wire to the connectors, always note that the red wire is the positive and should be
connected to the +12V; the black wire is Ground and should be connected to GND. The
motherboard has a System Hardware Monitor chipset on-board, which must be used with
fans specially designed with speed sensors to take advantage of the CPU fan control.
Figure 11:
Fan Power connectors
Table 5:
System FAN header, CPU FAN header
PIN
4-Wire support
PIN
3-Wire support
1
GND
1
GND
2
+12V power
2
+12V power
3
FAN_FB
3
TAC
4
FAN_PWM
4
Control