>>721113352
My gpu has a defect where the fans will think they're being undervolted and then overcorrect by trying to blow at like 50000rpm. I've done everything from that to changing the thermal pads to updating the card bios and even putting a lil desk fan in front of the case to cool it down more, it still happens. It's a known issue with 3090 cards and I got mine for cheap on ebay.