I have a 2700X on MSI X470 Gaming Plus. Update the BIOS to support my new 3800X also fixed this issue to me. Both CPUs are works well on Debian Buster without any extra kernel parameter and without disable C6.
I have a 2700X on MSI X470 Gaming Plus. Update the BIOS to support my new 3800X also fixed this issue to me. Both CPUs are works well on Debian Buster without any extra kernel parameter and without disable C6.