Cpu_Fan1, Pump_Fan1, Sys_Fan1~4: Fan Connectors - MSI MAG X570S TOMAHAWK MAX WIFI Benutzerhandbuch

CPU_FAN1, PUMP_FAN1, SYS_FAN1~4: 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.
You can follow the instruction below to adjust the fan connector to PWM or DC Mode.
SYS_FAN3
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
⚠
Important
Make sure fans are working properly after switching the PWM/ DC mode.
Pin definition of fan connectors
PWM Mode pin definition
1 Ground
3 Sense
26
Overview of Components
CPU_FAN1
PUMP_FAN1
SYS_FAN2
SYS_FAN1
SYS_FAN4
There are gradient points of the fan speed that allow you to adjust
fan speed in relation to CPU temperature.
2 +12V
4 Speed Control Signal
Default
Connector
fan mode
CPU_FAN1 Auto mode
PUMP_FAN1 PWM mode
SYS_FAN1~4 DC mode
DC Mode pin definition
1 Ground
3 Sense
Max. Max.
current power
2A 24W
2A 36W
1A 12W
2 Voltage Control
4 NC