> CPU 2 always runs about 20°C lower then CPU 1.
> Before both CPUs always had nearly same temperature

So when unused/idling CPU 2 had the same temperature as used CPU 1, how can CPU 2 still be simply idling as before and being significantly cooler at the same time? This doesn't make sense to me. Anyway, I'll ask for details in the other thread in the hope that the MorphOS team will clarify that note found in the MorphOS 3.10 release notes.