I was running A770 for bit over a week, and it suddenly started causing IOMMU crashes in windows. The day one, I got this same crash with latest stable windows drivers. After updating BIOS, I have been running for over a week without issues, but yesterday, I started getting IOMMU crashes every 10 minutes, the last one caused the MB thinking, I have changed my CPU. I even tried disabling IOMMU in BIOS, but to no avail. After swapping it back to RTX 3070, I had zero crashes. My system is Ryzen 7 5800X, 32GB RAM and Gigabyte x570 Elite. Any idea, what to look for?
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