Gigabyte AORUS MASTER Z490 User Manual page 28

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.
7) EC_TEMP1/EC_TEMP2 (Temperature Sensor Headers)
Connect the thermistor cables to the headers for temperature detection.
Hardware Installation
Pin No. Definition
1
1
2
3
4
Pin No. Definition
EC_TEMP1
1
1
2
1
EC_TEMP2
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GND
Voltage Speed Control
Sense
PWM Speed Control
SENSOR IN
GND