> - I installed CPUID's tools (cpu-z and hw-mon) on the offending box and let it
> run.
>
> - It froze again, since I watched more closely:
>   - 1st window content was no more updated - looks frozen, but still able to
> move mouse (frozen part1)
>   - 2nd after moving mouse making ~2 circles, mouse input was ignored (frozen
> part2)
>   - 3rd I checked network reachability: NONE, Keyboard lights for
> Caps-Lock/Num-Lock: NONE
>   - frozen complete
>