Thanks for the reply, but if it was the pump, wouldn't it be the same as what iCUE reports, aka 2.3k RPM not 4k?
And yes I'd want the fans to really be at 0 rpm at 'quiet', however the radiator fans are running at near full speed almost all the time, with short breaks. If I stress test the CPU fans just continue spinning like mad like they already do (but with a reason this time). Other system fans with Commander Pro are at ~1k RPM.
Changing profiles do not change anything, fans continue spinning at their very loud speed RPM while iCUE reports 0.
Here's an example while stressing the CPU with CPU-Z: https://i.imgur.com/g07ybA5.png
Temperature rising very slowly, fans still going crazy, "0 RPM" in iCUE, pump speed stable at 2300-ish in iCUE and "fan speed" reported at 4k with max of 7k in hwinfo