I was wrong to assume SE for any of this. I would crash only minutes after log in. It started slow at first (maybe once a month) then more and more until i couldnt play at all. Tested other games, same problem. Researched it quite heavily. Power supply, RAM, Motherboard, everything. The video card is not that old so I didnt assume any problems there. After a Memtest came back good it had to be the GPU. Swapped it out for my 6850 and FFXIV run's just fine. GPU is currently with manufacturer getting repaired.

Bad call on my part, sorry Yoshi.