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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. However,
you can follow the instruction below to adjust the fan connector to PWM or DC Mode
manually.
SYS_FAN6
PUMP_FAN1
CPU_FAN1
SYS_FAN1
SYS_FAN2
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
SYS_FAN3
SYS_FAN5 SYS_FAN4
Switching fan mode and adjusting fan speed
You can switch between PWM mode and DC mode and adjust fan speed in BIOS >
HARDWARE MONITOR.
Select PWM mode or DC mode
There are gradient points of the fan speed that allow you to adjust
fan speed in relation to CPU temperature.
⚠ ⚠Important Make sure fans are working properly after switching the PWM/ DC mode.
Pin definition of fan connectors
1
PWM Mode pin definition
1
DC Mode pin definition
1
Ground
2
+12V
1
Ground
2
Voltage Control
3
Sense
4
Speed Control Signal
3
Sense
4
NC
23
Overview of Components