Gigabyte Z790 AORUS MASTER User Manual page 23

6) CPU_OPT (Water Cooling CPU Fan Header)
The fan header is 4-pin and possesses a foolproof insertion design. 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.
Connector
Maximum Current
Maximum Power
7) EC_TEMP1/EC_TEMP2 (Temperature Sensor Headers)
Connect the thermistor cables to the headers for temperature detection.
CPU_FAN SYS_FAN1~4
2A
24W
1
CPU_OPT
SYS_FAN5~8_PUMP
2A
24W
1
EC_TEMP2
1
EC_TEMP1
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Pin No. Definition
1 GND
2 Voltage Speed Control
3 Sense
4 PWM Speed Control
CPU_OPT
2A
24W 24W
Pin No. Definition
1 SENSOR IN
2 GND
2A