so i bought parts and built..
Rampage III Extreme: tested at store, works
Intel core i7 950: tested in friends comp, works
XFX Radeon HD 5970 Black Edition: tested in friends comp, works
3x2GB Corsair XMS3 CHS DDR3 1600 CL: tested individually in all slots and also friends memory 2GB witch works fine, ram works
1000W power supply, works
Tested outside case, it doesen't short it out.
all cables checked many times.
tested with other monitors as well as resetting cmos
everything seems ok but no post beep/signal.
please help me! i dont wanna pay 50-60€ for fixing this.