So,before I start explaining what I did,I want to explain that I solved this problem like a year ago and totally ALONE: Neverthless my searches for guides and help,nothing and noone managed to solve this. Still,if someone already posted it in the meanwhile or even years ago,I don't really care as I gain nothing from posting this. I bricked my HD7770 (CSM Graphic Protocol but I tried to make it UEFI) and it bricked. To solve this I tried many things,even using three different GPUs (all them... Read more Weiterlesen...