Question How common is buzzing from a power supply, and is it harmful?

dinosaurus

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Nov 3, 2017
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I used to have an EVGA Supernova G2 650w power supply for my build, but it started buzzing and after a year and a half it went worse so I replaced it to be sure. I bought a Seasonic Focus 650fx 80+ gold power supply and everything was fine for about a week or 2 until it also started buzzing. With this power supply it seems to only buzz when gaming or just after some gaming, and then goes quiet. So I'm wondering how common this is and if it means anything bad?