kalastatus Posted August 5, 2021 Share Posted August 5, 2021 I recently built a PC and don't have much experience with using fans as it is the first time I have ever done such a thing. For some reason my back fan is running at max speed and I am unable to change it through the icue software app. The fan is currently plugged into a controller along witht the other 5 fans i have. I have tried plugging it into the motherboard but the same issue remains but it loses its RGB. The fan having the issue was a separate fan (2 are part of the water cooler and 3 came with the case) so im unsure if the fan itself is fauly or if it is another issue. Any help would be appreciated. Link to comment Share on other sites More sharing options...
c-attack Posted August 5, 2021 Share Posted August 5, 2021 (edited) This happens occasionally if the connection isn't good. Try disconnecting Fan #5 (back fan) from the Commander Core and then reconnecting. However, specific to the Commander Core, its auto-detect on the header may not reset. I would power down and do this so the controller does a reboot as well. Also be aware the Commander Core is a PWM only controller. If you plug a 3 pin DC fan into one of its headers, it will run at 100% all the time with that constant 12v signal. Edited August 5, 2021 by c-attack Link to comment Share on other sites More sharing options...
kalastatus Posted August 6, 2021 Author Share Posted August 6, 2021 I've just had a look and you are in deed correct. It is a 3 pin connector instead of a 4. Thank you very much for your help Link to comment Share on other sites More sharing options...
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