User Manual
![](/manual/msi/b450pvdhmax/user-manual-catalan-welsh-german-english-french-japanese-korean-russian-slovak-vietnamese-chinese/images/img-109.png)
15
CPU_FAN1, SYS_FAN1~2:
PWM () DC PWM
12V DC
3 (-PWM) 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