19
1
2 10
9
1 DCD 2 SIN
3 SOUT 4 DTR
5 Ground 6 DSR
7 RTS 8 CTS
9 RI 10 No Pin
This connector allows you to connect the optional serial port with bracket.
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.
will always maintain at 100%, which might create a lot of noise. You can follow the
detection mode fan connectors, the system will auto detect the fan mode.
Default PWM Mode fan connectors
1
CPU_FAN1
1
SYS_FAN3/ SYS_FAN4
1
PUMP_FAN1
1
SYS_FAN1/ SYS_FAN2
PWM Mode pin definition
1 Ground 2 +12V
3 Sense 4 Speed Control Signal
1 Ground 2 Voltage Control
3 Sense 4 NC
Important
y
You can switch between PWM mode and DC mode and adjust fan speed in
.
y
Make sure fans are working properly after switching the PWM/ DC mode.
Pin definition of fan connectors
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