Biostar B550MX/E PRO - 2.3 Connect Cooling Fans; 2.4 Install System Memory

Chapter 2: Hardware installaon | 11
B550MX/E PRO | B550MH/E PRO
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/ SYS_FAN2: 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/SYS_FAN2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).
2.4 Install System Memory
DDR4 Modules