Pedro77 Posted March 30, 2018 Share Posted March 30, 2018 There are a lot of posts related to coil whine (coil noise, electric buzz) over the internet. I want to tell my experience on that. I had a bad time to find the source of very high/loud GPU coil whine when the GPU is over load. S PSUs model: - Corsair HX620W - Corsair RM750i Performed tests: - GPUs: Zotac GTX. G1 Gigabyte GTX 970. Galax GTX 1070 Ti. - Motherboards: ASRock Z87M Pro4; Gigabyte GA-B85M-D3PH and Gigabyte Z370 Aorus Gaming WIFI. - Three different wall sockets, in different houses. The only thing that removed the GPU coil whine was a non Corsair PSU: EVGA 600W :!: Coil whine is back even with EVGA. I don't know what else to do. So far, the best explanation I found is that the PSU gives a low quality power to the GPU, which needs to filter it, resulting in loud coil whine. Please, any Corsair engineer can give a detailed technical explanation why this coil whine happens depending on config/luck, what can we can do about it and what is being done to solve this problem at lest in high quality product lines? Link to comment Share on other sites More sharing options...
Wired Posted March 30, 2018 Share Posted March 30, 2018 So far, the best explanation I found is that the PSU gives a low quality power to the GPU, which needs to filter it, resulting in loud coil whine.Are you generalizing the issue, or are you saying you measured your PSU using a voltmeter? Please, any Corsair engineer can give a detailed technical explanation why this coil whine happens depending on config/luck, what can we can do about it and what is being done to solve this problem at lest in high quality product lines? https://www.corsair.com/us/en/blog/coil-whine That blog post has some info on coil whine. Link to comment Share on other sites More sharing options...
Pedro77 Posted March 31, 2018 Author Share Posted March 31, 2018 I'm not generalizing it. That was just the best explanation I have for GPU coil whine. Thanks for the link, it seams Corsair if very committed to remove coil whine from their PSUs. My two Corsair PSU are very quite, no col whine. The problem comes from GPU coil whine. Maybe the GPU manufactures just doesn't take so much care as Corsair in relation to coil whine. Or, as I said before, the power supplied by the PSU to the GPU is not good enough. Link to comment Share on other sites More sharing options...
kyle0782000 Posted April 30, 2018 Share Posted April 30, 2018 https://www.corsair.com/us/en/blog/coil-whine That blog post has some info on coil whine. Interesting :): Link to comment Share on other sites More sharing options...
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