Hi All,
Tried searching the forum and a lot of Googling but can't find anything specific to my problem or setup.
Basically, on booting up, my CPU fan is at low RPM as expected as the CPU is not being taxed. If I tax the CPU a little the RPM increases and the decreases as the load lightens on the CPU. However, if I start a game or anything that may make the CPU work fairly hard the RPM on the fan goes high but once the load is gone on the CPU the fan doesnt slow back down again. I have left it for a couple of hours and still high RPM. Interestingly, HWMonitor shows low temps as expected for no load but approx 600 RPM for the fan even though it's clearly spinning faster. If I reboot the fan goes back to normal.
I have i7 7700K, IX Hero mobo, 8Pack 16GB Ram, Phanteks PH-TC14PE_BK Cooler. No OC and in BIOS I have tried all on default and tried PWM for every fan setting there is (ie EXternal, Internal etc.) all set on Silent. For the CPU fan I have tried standard and manual (slight tweak from standard). All PWM.
Any help appreciated, pulling my hair out over this one. Any more info required please let me know.
Thanks guys.