MSI MEG B550 UNIFY-X

30
Overview of Components
CPU_FAN1, PUMP_FAN1, SYS_FAN1~6: Fan Connectors

PWM Mode fan connectors provide constant 12V output and adjust fan speed with



manually.
Switching fan mode and adjusting fan speed
BIOS >
HARDWARE MONITOR.
Select PWM mode or DC mode

Important

There are gradient points of the fan speed that allow you to adjust

Pin definition of fan connectors

SYS_FAN2
SYS_FAN6
SYS_FAN3
SYS_FAN4
SYS_FAN5
PUMP_FAN1 SYS_FAN1
Connector
Default fan
mode
Max.
current
Max.
power
 Auto mode 2A 24W
PUMP_FAN1 PWM mode 3A 36W
  2A 24W
1
PWM Mode pin definition
1 Ground 2 +12V
3 Sense 4 
1
DC Mode pin definition
1 Ground 2 
3 Sense 4 