Connect Cooling Fans - Biostar B450MHP Manual

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_FAN: CPU Fan Header
SYS_FAN1: System Fan Header
Note
» » CPU_FAN, SYS_FAN1 support 4-pin and 3-pin head connectors. 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 pin#1(GND).
Pin Assignment
1 Ground
2 +12V
3 FAN RPM rate sense
4 AI Fan Control (By Fan)
Pin Assignment
1 Ground
2 +12V
3 FAN RPM rate sense
4 AI Fan Control (By Fan)
Chapter 2: Hardware installation | 11