Biostar A520MPT-E - 2.3 Cooling Fan Connection

Chapter 2: Hardware installaon | 19
A520MPT-E | A520MPT | A520MT-E | A520MT | A520MS | B550MT | B550MS
2.3 Connect Cooling Fans
These fan headers support cooling-fans built in the computer. The fan cable and connector
may be dierent according to the fan manufacturer.
CPU_FAN: CPU Fan Header
Pin Assignment
1 Ground
2 +12V
3 FAN RPM rate sense
4 AI Fan Control
SYS_FAN1: System Fan Header
Pin Assignment
1 Ground
2 +12V
3 FAN RPM rate sense
4 AI Fan Control
Note
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CPU_FAN, SYS_FAN1 support 4-pin and 3-pin head connectors. When connecng with wires onto
connectors, please note that the red wire is the posive and should be connected to pin#2, and the
black wire is Ground and should be connected to pin#1(GND).