Another 9800x3d dead, nova X870e

I had a system going for about 2 weeks stock no overclock, no expo, and I decided to upgrade the ram from 32gb to 64gb "yes I made sure it was compatible, another user said they had a machine working with it also". Well after replacing the sticks I got a error code 00 which isn't used/CPU not being read. Very weird so anyways I did every trouble shoot in the book and nothing would change it, I did get 1 random code of 14 which I couldn't find anything on. Well luckily I was upgrading from a 7900x so I plopped that back in and what know code 15 into boot... I'm not sure what caused the cpu to kill it's self but it's a little scary seeing all the posts and now mine going. I'll be contacting amd tomorrow for a replacement. But idk if I should try another motherboard brand, any ideas? CPU temps never went over 75c for everyones info, I keep core info on one of my monitors

UPDATE:New 9800x3d showed up, working fine. Stable on bios 3.16