Hello I have a Asus notebook s and it work fine this morning. But as I was in it this morning I had gotten hot so I shut it down thru the start menu like ur supposed to and it made a roaring sound while it was hot then as I shut it and sit it down it made a piping sound so as it was hot I put a fan in front of it BC the fan did not work well I turn it on after it cooled down and now my screen has lines their and black patching on the screen what could have happened