I have a Prime Z690-P and all setup working perfectly with Windows 11, but noticed an oddity with the CPU Fan. I'm using a CoolerMaster EVO V2 but the same happened with the Intel stock cooler.
Basically the speed goes in reverse, by that I mean as the CPU temperature increases, the fan speed of the CPU cooler slows down and hits the minimum setting, as the CPU cools down, the fan speeds up. If you think about a dot on the Q-FAN chart for the temperature, it moves in the wrong direction. All other fans work correctly. Also when in the BIOS and in the Q-FAN settings, if I adjust the chart the fan works normally, for example set turbo mode, the fan speeds up, select quiet mode the fan slows down. It just seems that the temperature change moves the speed in the opposite direction that it should. I've tried DC Mode and PWM Mode, in DC Mode I set the fan to stop at it's lowest setting, and sure enough, run a benchmark to stress the CPU the fan slow downs and stops, stop the benchmark and see the CPU temperature fall, the fan starts back up again! I've ran several Q-Fan calibration tests and it's made no difference, the CPU fan always behaves in the opposite manner it should with temperature. Obviously this isn't good! I've done a full reset of the BIOS and it made no difference.
I downloaded some fan control software to run in Windows and configured it for the CPU fan, and this works it perfectly, and so points the finger at a bug in Q-FAN firmware/BIOS.
Posting here in the hope it gets picked up by Asus, or if anyone has any ideas how I might fix it as I'd rather not run software to control the fan.