my 980ti i have 2 fans. when i start up my pc 1 fan goes max speed and the other one is like trying to start it spins for 2 sec and then take a break and reapet. the tempature is not an issue its at 25°C. but the thing is that it makes a really loud sound almost like a vacuum cleaner and when i try to lower fan speed in msi after burner nothing happens. please help