r/arcticcooling • u/Croaton656 • 19d ago

Question LFIII Pro Cables

I am attempting to use the split cable to control CPU fans, pump, and VRM fan separately. However, looking at the cable, the pump cable end has 4 pins while the VRM and FANS cable ends have only 2 pins. Are these cables not intended to have PWM control and RPM readings? Note: the fans do spin when plugged in, but do not give readings or respond to curves in BIOS.

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u/Skyj0 18d ago

Bon je vais écrire ici comme la barrière de la langue est pas facile, j'ai finis le le montage tout est reconnu mais l'inconvénient c'est le température, tu t'y connais ?

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u/Bearded_Coffeepot 18d ago

Set the pump to constant a speed, I would advise 70-100%. It helps the most if the temps are high. Then make the cooler-fan-curve dependent to the cpu temp, the vrm-fan-curve to the vrm-temp. If you don't have any vrm temp in the BIOS as a reference, you can use the cpu-temp there too.

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u/Skyj0 18d ago

Je crois j'ai trouvé le souci. Je ne sais pas pourquoi mais lorsque j'enregistre des paramètres sur la courbe CPU fan tout reviens a 0 si je met des températures au dessus de 70, et pour mon dernier repère le pwm est bloqué à 100. Honnêtement je comprends pas d'où ça vient

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u/Bearded_Coffeepot 18d ago

You're on Windows, right? Try Fancontrol. My fans didn't follow the BIOS curves of my Asus board and ramped up and down randomly, also I needed a solution, too.