I'll be real honest , the temperature-fan speed curve on this laptop sucks , Only after the CPU hits 95c and throttles the fan hits a high speed and its quite useless at that point when the CPU has throttled down to like 2.2ghz
After using the MYASUS app-the fan diagnostic tool , I realised that the fan can spin at speeds higher than 3000rpm (ofc the sound says it all , and i see a temporary temperature drop during the diagnostic test when the fan runs at a high speed than usual)
So I tried using Notebook Fan Control , and No avail , Even tried making my own config...still does not work and it honestly sucks when the fan can do more , but you want to lock it at lower speeds (My older dell had the fan speed set at 100% all the time...it did not explode or something...and I dont mind getting a fan replacement even if the fan decides to give up)
Model : Asus X509FJ - model with a i5-8265U and a MX230 GPU
BIOS version : 302 (pls don't ask me to upgrade it to 303 , v303 locks voltage controls(cannot undervolt which was helping me to control the temperatures) and my laptop idles at 75c for no reason (even after cleaning up and a thermal repaste)
