Thanks to all for the great help

I have just brought the PC back to the shop where i bought it and then they gave me a new pc of the same model.
I install all drivers etc and run the FF-Benchmark. The PC did not restart.
Then I tested again with SpeedFan. I logged in in Final Fantasy an went to MorDhona. Now I stand there for 15 minutes and the PC not restart.
SpeedFan now tell me that the GPU have 45C-53C since I'm in MorDhona. I think thats ok now? Not like the 103C at the other PC. Or is it still to high? But I don't think so.
Tomorrow I will test it in a Dungeon and tell you how it work. But i think with the new PC all is fine. It realy looks like that the fan of the videocard in the other PC was broken or something.
