Good point. Since the water will keep the CPU chip cooler for any speed of fan then you could probably set the AIO cooler fans to a fixed speed for 40 to 80 degrees C. Then let the pump speed vary with the CPU temperature spikes because the pump is likely near silent anyway.
I have almost identical setup like texasnightowl and the same problem. I use Gigabyte Aorus X570 Master motherboard and AMD Ryzen 9 3900XT CPU. Can it be that this is caused by some problem in the motherboard? I know people who has Ryzen 9 3900X and they don't experience such issue. Can it be CPU defect as I have non-X but XT version?
By the way it's my 1st AMD CPU since Pentium III (I was always Intel user) and this experience made me upset... I hope I can solve this in someway
I have a Ryzen 9 3900x and Aorus Master board. With default bios settings my cpu fan would also cycle loudly. I changed the Smart Fan setting for the fan to PWM and the cycling was resolved. I still have idle temps around 65C running BOINC at 50% cpu useage though. I disabled the cpu Boost in bios and now run in the mid-40s still running BOINC. Temps concerned me because I run BOINC 24/7. Going to check thermal paste and reinstall Prism cooler to make sure that is not a problem.
I have a Ryzen 9 3900x and ROG STRIX b450-F Gaming Motherboard
And my temp jumped 38c to 68c In 1 sec idle and 49c 51c to 72c 80c + gaming
what i did for a temp fix is uninstall G HUB :/ and now my temp is
31c to 41 idle 56c to 67c gaming