Gigabyte B650M AORUS PRO AX User Manual - Page 20

CPU_FAN/SYS_FAN1/2/3 Fan Headers, SYS_FAN4_PUMP System Fan/Water Cooling Pump Header

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3/4) CPU_FAN/SYS_FAN1/2/3 (Fan Headers) All fan headers on this motherboard are 4-pin. Most fan headers possess a foolproof insertion design. When connecting a fan cable, be sure to connect it in the correct orientation (the black connector wire is the ground wire). The speed control function requires the use of a fan with fan speed control design. For optimum heat dissipation, it is recommended that a system fan be installed inside the chassis. 1 CPU_FAN CPU_FAN: Pin No. 1 2 3 4 Definition GND Voltage Speed Control Sense PWM Speed Control 1 SYS_FAN1/2/3 SYS_FAN1/2/3: Pin No. Definition 1 GND 2 Voltage Speed Control 3 Sense 4 NC 5) SYS_FAN4_PUMP (System Fan/Water Cooling Pump Header) The fan/pump header is 4-pin. Most fan headers possess a foolproof insertion design. When connecting a fan cable, be sure to connect it in the correct orientation (the black connector wire is the ground wire). The speed control function requires the use of a fan with fan speed control design. For optimum heat dissipation, it is recommended that a system fan be installed inside the chassis. The header also provides speed control for a water cooling pump. Please navigate to the "BIOS Setup" page of GIGABYTE's website and search for "Smart Fan 6" for more information. Pin No. Definition 1 GND 2 Voltage Speed Control 1 3 Sense 4 PWM Speed Control - 20 -

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3/4) CPU_FAN/SYS_FAN1/2/3 (Fan Headers)
All fan headers on this motherboard are 4-pin. Most fan headers possess a foolproof insertion design.
When connecting a fan cable, be sure to connect it in the correct orientation (the black connector wire is
the ground wire). The speed control function requires the use of a fan with fan speed control design. For
optimum heat dissipation, it is recommended that a system fan be installed inside the chassis.
CPU_FAN
1
1
SYS_FAN1/2/3
Pin No.
Definition
1
GND
2
Voltage Speed Control
3
Sense
4
PWM Speed Control
5)
SYS_FAN4_PUMP (System Fan/Water Cooling Pump Header)
The fan/pump header is 4-pin. Most fan headers possess a foolproof insertion design. When connecting a
fan cable, be sure to connect it in the correct orientation (the black connector wire is the ground wire). The
speed control function requires the use of a fan with fan speed control design. For optimum heat dissipation,
it is recommended that a system fan be installed inside the chassis. The header also provides speed control
for a water cooling pump. Please navigate to the "BIOS Setup" page of GIGABYTE's website and search
for "Smart Fan 6" for more information.
Pin No.
Definition
1
GND
2
Voltage Speed Control
3
Sense
4
PWM Speed Control
1
Pin No.
Definition
1
GND
2
Voltage Speed Control
3
Sense
4
NC
CPU_FAN:
SYS_FAN1/2/3: