Biostar X570GT Ver. 6.x, Manual

Page: 10 / 82

10 | Chapter 2: Hardware installation
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
PWM Mode
Pin Assignment
1
Ground
2 +12V
3 Sense
4 Speed Control Signal
SYS_FAN1: System Fan Header
PWM Mode
Pin Assignment
1
Ground
2 +12V
3 Sense
4 Speed Control Signal
SYS_FAN2: System Fan Header (Southbridge Heatsink Fan Header)
DC Mode
Pin Assignment
1
NC
2 Sense
3 Voltage Control
4 Ground
Note
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CPU_FAN1, 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).
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SYS_FAN2 connector is only available for Southbridge Heatsink Fan.