Hi everyone,
I was a happy camper with my i5-8600k no issues besides a lack of cores for my usage.
So I upgraded to AMD 3900X, missing the integrated GPU but that's a different story:
Since the upgrade to AMD I can watch the CPU load rise, without any indication I can make out. No processes hogging CPU, no abnormal disk writes and enough RAM (64 GB). So the server then becomes unresponsive. I'm not able for force stop the docker process, libvirtd does work.
So in the end I end up force stopping my machine via power button.
I already tried disabling C states and adding the kernel parameter (adjusted to 24 threads aka 0-23) as recommended by spaceinvaderone (starting around 9:50 min).
I'll attach the diagnostics within the next hour.
I was gone for 4 days and the load was at 1300 oO
This morning like 30 minutes after starting up I was at 127 already see screenshot with htop, top, iotop and vmstat.
Running X570 Taichi with the latest BIOS (2.10 - 2019/9/17).