User Manual
![](/manual/msi/b450pvdhmax/user-manual-catalan-welsh-german-english-french-japanese-korean-russian-slovak-vietnamese-chinese/images/img-33.png)
15
CPU_FAN1, SYS_FAN1~2:
PWM (Pulse Width Modulation) DC .
PWM 12V
. DC .
PWM 3- (Non-PWM) , 100%
. PWM DC
.
PWM DC BIOS > HARDWARE MONITOR(
) .
PWM DC
PWM/ DC , .
CPU .
PWM
DC
1
CPU_FAN1
1
SYS_FAN1/ 2
PWM
1 Ground 2 +12V
3 Sense 4 Speed Control Signal
DC
1 Ground 2 Voltage Control
3 Sense 4 NC