The graphics options doesn't change that, the thing is, the game runs with unlimited FPS and that will bring my GPU to full throttle. As insomniac_lemon, I get coil whine too, which can happen on some cards when the FPS are very high.
Unity should supports both, frame limiter and Vsync, so it shouldn't be too hard to implement it.
I've sent you the log, but it doesn't give any important information/errors.