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CPU_FAN1, PUMP_FAN1, SYS_FAN1~6: Fan Connectors

Fan connectors can be classified as PWM (Pulse Width Modulation) Mode or DC Mode.

PWM Mode fan connectors provide constant 12V output and adjust fan speed with

speed control signal. DC Mode fan connectors control fan speed by changing voltage.

The auto mode fan connectors can automatically detect PWM and DC mode.

You can control fans in BIOS> HARDWARE MONITOR panel. It allows you to set DC

or PWM to your fan type. Check the Smart Fan Mode, the fan speed will change

according to the CPU or system temperature. Uncheck the Smart Fan Mode, the fan

will spin at maximum speed.

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Important

Make sure fans are working properly after switching the PWM/ DC mode.

CPU_FAN1

SYS_FAN6

SYS_FAN2

SYS_FAN3

SYS_FAN4

SYS_FAN5

PUMP_FAN1

SYS_FAN1

PWM Mode pin definition

Pin Signal Name Pin Signal Name

1 Ground 2 +12V

3 Sense 4 Speed Control Signal

DC Mode pin definition

Pin Signal Name Pin Signal Name

1 Ground 2 Voltage Control

3 Sense 4 NC

Fan connector specifications

Connector Default fan mode Max. current Max. power

CPU_FAN1 Auto mode 2A 24W

PUMP_FAN1 PWM mode 3A 36W

SYS_FAN1~6 DC mode 1A 12W