
Motherboard Manual
8
2.3 Connect Cooling Fans
These fan headers support cooling-fans built in the computer. The fan cable and
connector may be different according to the fan manufacturer.
CPU_FAN1: CPU Fan Header
Pin Assignment
1 Ground
2 +12V
3 FAN RPM rate sense
4 Smart Fan Control
SYS_FAN1/2: System Fan Headers
Pin Assignment
1 Ground
2 +12V
3 FAN RPM rate sense
Note: The SYS_FAN1/2 supports 3-pin head connectors; the CPU_FAN1 supports 4-pin head
connector. When connecting with wires onto connectors, please note that the red wire is the
positive and should be connected to pin#2, and the black wire is Ground and should be
connected to GND.
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