@Astyanax i know that you have knowledge but this is my test and i had the same problem. I search in google about the problem i had with mx-4 in the gpu die and i found that is the pump out effect. Same card same problem so i have nothing more to discuss. All are crap until you see them with your eyes. Maybe the pump out effect is a myth and simple that card have a big gap between chip and heat sink and need a not so watery thermal paste. But in that card mx-4 cant work.