Seems Taichi or Asrock X870s with 9950X3D are melting the boards and sometimes not booting or frying the processors...
First user reports Ryzen 9 9950X3D CPU not booting on ASRock X870 motherboard after just 9 days of use
[URL unfurl="true"]https://www.reddit.com/r/ASRock/s/hbkctAeQjH[/URL]
While Asrock is claiming that it is AMDs fault for processors not booting on their mobos or processors getting fried in their mobos
Here we go:ASRock addresses Ryzen 9000 boot issues concerns: “all BIOS versions including earlier iterations will not cause CPU damage”
At the end some users are complaining it's because of AMDs lane sharing these are happening...