I tried alot and also talked to Nvidia Support and they say it has to be a mainboard issue (hardware) or windows 7 issue (software).
I can't call MSI on weekends so i have to wait untill monday and i gave up on microsoft support long ago.
It's strange the card gets detected in BIOS just fine and i also visited a friend and tried the card in his computer, works perfectly.
I tried every PCI slot in my mainboard, the first one works but does not detect the GPU, the other slots just say black and say "No Signal".
Are the PCI slots broken? No, i tried my sound card in every PCI slot and it works prefectly in every slot. The GPU works, the mainboard works, so i think it has to be an issue with windows. I'll call MSI on monday and will see what think of this and i hope MSI can help me, i dont want to use the windows support.
I'll update this after i talked to MSI.