![]() The BIOS and anything else that monitors/shows the RPM is showing the correct speed of the CPU fan, and I can visually confirm this, a fast fan shows high RPM and vice versa. 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. 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. Obviously this isn't good! I've done a full reset of the BIOS and it made no difference. 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. ![]() It just seems that the temperature change moves the speed in the opposite direction that it should. ![]() 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. If you think about a dot on the Q-FAN chart for the temperature, it moves in the wrong direction. I'm using a CoolerMaster EVO V2 but the same happened with the Intel stock cooler.īasically 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. ![]() I have a Prime Z690-P and all setup working perfectly with Windows 11, but noticed an oddity with the CPU Fan.
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