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Corsair HX520 intermittent buzz/whine under load


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Just installed this power supply, its fine under low load but as soon as I play a video file in say media player straight away the PSU starts making this high pitched noise which is intermittent, it makes the noise for about 2seconds then goes off for 5seconds then on for 2seconds etc, I can clearly hear it from 5feet away, its annoying.


I’ve tried another nvidia graphics cards and re-installed some newer drivers still same problem.


Im sure this is not normal, but I don’t want to get another and have the same problem, how common is this? Thinking of getting another Zalman as my previous PSU never had these issues.

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