Comment by vondur
21 hours ago
It is really annoying how the x64 CPU's seem to constantly ramp up and down seemingly at random. I've been trying to tweak the fan curves on my Ryzen 9950x to avoid this but haven't been successful yet. Next stop is lowering the voltage once I figure out how to do it on my motherboard.
Try making the fan speed curve mostly flat in the middle at whatever fan speed keeps the system from hitting the far end of the temperature range under moderate usage. Let it ramp all the way down at idle and all the way up at all-core full load but anything in the middle gets a fixed medium speed. If that medium speed is too loud then what you need is a larger fan that provides that amount of cooling at a lower fan speed.