Caveat: I besitzte a kind ultrabook from Acer. The internal cooling is hopelessly undersized in this, which means that in demanding applications and occasional games ever created intense heat. And all will succeed. Therefore, a cooler was needed. I was frankly the price lured When he arrived today, I was pretty pleased first: Simple packing without a lot of advertising and for the price but ordinary processing. So connected and tested. What is most striking is the enormous volume but, that's just too loud. I've already thought of - 140mm fan and UE1000 u / min - you can see it quite rare. I can not concentrate on doing just as CAD. This could be determined off, you could control the speed. Another problem might be that the enormous power of the fans goes away literally to the side ..... it shows quite well, if you take the laptop away. Upwardly because where she was supposed to go, unfortunately, comes only little air and the air flow is hardly noticeable. Here lacks an air duct or the like. So I'll return the produckt. For games laptops the already very noisy are the vllt. a sinnfolle and inexpensive, but who puts a bit of importance to the noise level is völligst misplaced.