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CPU_FAN1, SYS_FAN1: 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.
Fan connector specifications
Connector
CPU_FAN1
SYS_FAN1
⚠
Important
You can adjust fan speed in BIOS > HARDWARE MONITOR.
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1
Default fan mode
PWM mode
DC mode
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PWM Mode pin definition
Pin
Signal Name
1
Ground
3
Sense
DC Mode pin definition
Pin
Signal Name
1
Ground
3
Sense
Max. current
2A
1A
19
Pin
Signal Name
2
+12V
4
Speed Control Signal
Pin
Signal Name
2
Voltage Control
4
NC
Max. power
24W
12W
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