Ok, a little update. I took the card to a friend of mine to test in his PC, and the problem became quite clear, but the solution is still missing. The PC was able to start just fine and worked perfectly until Windows updated the GPU drivers, and then the screen just went black. Every single AMD driver update i could find and test would do the same. Windows doesn't recognize the card by name and it just says its a Microsoft basic display adapter, but other software like GPU-Z recognize the card as a 28nm hawaii AMD card with 4G of GDDR5 memory and so on. I have used DDU multiple times, turned off fast boot and disabled Windows auto updates, yet it still goes black when i install the drivers. Any suggestions are welcome, as i'm clueless at this point. (and baking the card will be last resort but i'm hoping it wont come down to that)