Okay! I had a graphic card in my motherboard so took out my 6990 and removed its drivers.. Just a while after it bluescreened with the same bccode etc.. Tested alla 4 memories in the same port and 1 off them had 1 error after 15 passes, the other 3 were clean.. After testing the hard drive twice I did not get any message about errors.
So it might be the memory that causes this? Gonna try without it for a while.. =)