bombercamisa1 Posted November 14, 2013 Share Posted November 14, 2013 Hi guys! I need some help regarding my newly bought CX750M. Since the first day I started using my brand new CX750M PSU(2 weeks ago) I noticed a buzzing coming from it. That was really strange to me since all PSUs I've ever had were completely silent. So I searched these forums and tried disabling my motherboard's ERP, C1E and EIST options as suggested on another thread. It didn't work. I contacted the seller, I sent them some videos of it working(both silently and noisy) and they told me that it was normal. It was just the capacitor heating, hence the noise. That sounded really awkward to me since this buzzing seems totally random. It happened during hot days, it happened during a cold night. It happened while the pc was in heavy use(playing games, etc), it happened while the pc was in stand by mode. Sometimes it lasts for 3 minutes, sometimes it lasts for 15 minutes. So my guess is it can't be just a capacitor heating since there's no pattern to it. Can you guys give me any help? 1º video - noisy http://www.facebook.com/photo.php?v=10201601898882257&l=8367819991100055941 2º video - noisy http://www.facebook.com/photo.php?v=10201613890302035&l=630911712249759177 3º video - now the PSU completely silent (as I think it should be working all the time) http://www.facebook.com/photo.php?v=10201603295037160&l=8536833907423705114 Thanks! Link to comment Share on other sites More sharing options...
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