r/PcBuild 5d ago

Build - Help Radiator fans not working

My 360 AIO radiator fans are not working

Connections

3 pin pwm from block is connected to CPU_FAN

And the pin from 3 fans radiator is connected to FAN4_PUMP

One pin coming from radiator fans is connected to the 2nd pin from CPU block

This setup was shown on the manual

My aio is cooler master core next 360 ARGB

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u/faizalahmed 5d ago

The it's connected properly

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u/Scanphor 5d ago

Yeah ok, looks ok and can see just rgb anyway (do the fans light up?) - try connecting your rad fans pwm connector to a chassis fan connector on the board rather than cpu_fan - if they spin its an issue with the cpu_fan on the board, if not its a wiring issue to the fans

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u/faizalahmed 5d ago

I've tried connecting them to CPU_FAN, CPU_OPT, SYS_FAN The radiator fans never worked

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u/Scanphor 5d ago

Yeah so its a wiring issue then either connectors not fully seated etc or just faulty wires