Cpu_Fan1, Pump_Fan1, Sys_Fan1~4: Fan Connectors - MSI Z270 PC MATE Kurzanleitung

CPU_FAN1, PUMP_FAN1, SYS_FAN1~4: Fan Connectors

Fan connectors can be classified as PWM (Pulse Width Modulation) Mode and 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. When you plug a 3-pin (Non-PWM) fan to a PWM Mode fan connector, the fan
speed will be always maintained at 100%, and that could be noisy.
Switching fan mode and adjusting fan speed
You can switch between PWM mode and DC mode and adjust fan speed in BIOS >
HARDWARE MONITOR. (The picture below shows the HARDWARE MONITOR screen for
Z270 PC MATE, and that s different for H270 PC MATE and B250 PC MATE)
Select PWM mode or DC mode
Important
Make sure fans are working properly after switching the PWM/ DC mode.
20
Overview of Components
PWM Mode fan connector
1
3
DC Mode fan connector
SYS_FAN1/ SYS_FAN2/ SYS_FAN4
1
3
There are gradient points of the fan speed that allow you to adjust
fan speed in relation to CPU temperature.
1
CPU_FAN1
Ground 2
Sense 4
1
Ground 2
Sense 4
1
PUMP_FAN1
+12V
Speed Control Signal
1
SYS_FAN3
Voltage Control
NC