This puts single core use as much higher than Intel which has spread core use over all the cores.Īs a result, idle temps for Ryzen are considerably higher than what people have been expecting from Intels for years. With Ryzen in low power states, it shuts down all the cores, parks them, so any and all background tasks happen to just 1 core. So you'll get small bounces across one or two cores periodically. With Intel in low power states like idle, bios drops voltages and clocks across all the cores, but all the cores retain some activity with background tasks. You are dealing with a Ryzen, not Intel cpu.

I've since then ditched the AiO and returned to air cooling instead.

Most tasks performed on my PC, had their own step in the fan curve, you could say. That way I avoided the annoying sound of fans increasing or decreasing often, when watching a video for example. It was more like a step ladder curve, where gaming was within a certain range, minimal load was in a different range. So the fan curve I used wasn't a smooth gradual curve, instead I had it configured to everyday tasks like browsing and watching video never resulted in a temperature where the fan RPM would increase or decrease. So I spent a lot of time figuring out minimum fan RPM for efficient cooling. I performed a lot of different temperature and load tests, and I quickly noticed, that at a certian point, increasing the radiator fan RPM had little impact on cooling performance, but became very loud instead. The noise from the AiOs bothers me when they are running at high RPM. This was with an i9 9900K (stock settings), and temps never went above 70'c with this setup. The pump was on a factory 'Silent' preset, so it was at 2000rpm when under light load, and 2700rpm during gaming and stresstests From 55'c it was increased to 45%, at 65'c it was set to 50%, and from 75'c and beyond, it was set to 65% I had an NZXT Kraken 圆2 280mm AiO and I had the fans at 35% until 55'c. As mentioned above, it depends on what AiO you have, CPU as well.

Aorus 120mm fan