Biostar B250MHC - Cooling Fan Header Connection; System Memory (RAM) Installation

10 | Chapter 2: Hardware installaon
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_FAN1: 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_FAN1,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).
2.4 Install System Memory
DDR4 Modules