Question PSU “crunch” sound

Aug 7, 2024
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Hi, this is my current build:

https://pcpartpicker.com/user/baribarigood/saved/3MzcMp

Just built a new system and only when I turn off my psu, I hear a slight static/“crunch” sound as the switch flips. Is this normal or should i return it immediately? I tried to buy a reputable psu, maybe i got unlucky? If i need to return, should i consider a different psu brand or is a replacement fine?

Any advice or help would be greatly appreciated, thanks!