I have an Acer Predator G3620 that I upgraded several months ago by swapping out the stock CPU fan with an Arctic Cooling Freezer 13 and upon booting up my PC it gives me this error. I ignored this for quite some time and I finally caved in. I entered my BIOS menu to see if there was an option to disable fan monitoring in the PC Health section, the only available option I seemed to be able to switch was Smart Fan and it made my fans run at full speed, even then the error still remained. My fan is working fine and my temperatures appear normal, I don't think the fan has a speed monitor because there is no speed displayed in BIOS. My BIOS is currently P01-A2 which I'm assuming is standard for the Predator G3 series. Any help will be greatly appreciated.