Gigabyte Z590 AORUS XTREME WB User Manual page 30

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.
• Be sure to connect fan cables to the fan headers to prevent your CPU and system from
overheating. Overheating may result in damage to the CPU or the system may hang.
• These fan headers are not configuration jumper blocks. Do not place a jumper cap on the headers.
7) LED_CPU (Water Cooling Kit CPU LED Header)
This header provides power and signals to the CPU LED on the water cooling kit. It can detect water cooling
leaks, which ensures stable heat dissipation for your system.
• In case a leak occurs, turn off the power supply immediately. Do not turn on the power until the
leak is solved.
• Leak detection efficacy varies by liquid coolants.
Hardware Installation
Pin No. Definition
1
1 GND
2 Voltage Speed Control
3 Sense
4 PWM Speed Control
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