I just upgraded my gaming pc and since I had 3 pin fans and a splitter I thought the fans being at max was a controller problem. I since have removed the splitter and plugged just 1 system fan into the header (it is set to voltage mode). In the BIOS my fans are fine and at a normal speed however as soon as I go to put in my pin to log into windows 10 the fans ramp up to 100% speed (including my CPU fan which is plugged into the CPU fan header and set to PWM mode) any help would be appreciated thanks. All my temperatures and utilisation is normal (idling at about 30C and 10% usage)