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H80 Help Needed. One fan at max rpm and the other at zero


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Everything was running well for over 1 year, until I decided to suspend/sleep my PC. Had never done it. Next morning, all started ok (Windows), but H80 fan speed was at max noise.


Powered everything down, restarted and no change. Further testing showed only one of the 2 fans running, the other dead. By swapping fan connectors from the pump, I noticed the other fan started running at max (the originally dead one), and (you guessed) the running fan went dead.


This shows the fans are running well, but for some reason one is set to full, the other at zero.


I've started it pressing the button (which is supposed to reset it) with no success (only the LEDs blink in rotation).


Any help is appreciated.

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