[whywhywhywhy]

>I presume the quick temperature rises are specific to modern Ryzen CPUs, perhaps others too. Maybe this is due to more accurate sensors, or even a less-than-ideal thermal interface.

It’s because the cpu is designed to push itself to a thermal limit and have its output performance decided by how you keep it at that limit so it essentially goes full throttle to 90deg then slows down if your cooling can’t keep up which causes the fan spikes.

So I’m told from the research I did.

My latest machine had the same issue but just updating all drivers, setting some auto curves and adding easing for the fan spin up time completely solved it.