Question Ryzen 7900x memtester errors under load

Mar 18, 2023
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I recently bought a Ryzen 7900x and noticed some of my programs would occasionally crash with strange error messages.

I started running memtester, and clocked up over 16 hours or so without any errors. But as soon as I started a CPU stress test, I got 3 errors within 10 minutes. I've stopped the stress test and haven't seen an error since.

Does anyone know what might be causing this?