The mainboard is an MSI X570-A PRO with the latest UEFI installed. The CPU model is Ryzen 5 3600. C6 state is, afaik, disabled (using https://github.com/jfredrickson/disable-c6), though “cat /sys/module/intel_idle/parameters/max_cstate” returns “9”.
Now to the problem I have: the machines freeze randomly. It might be randomly during idling for an hour. It might be after five minutes or an hour of quite high load. It might also be exactly when starting something.
What can I do to fix that?