hey uters

i need some help

I got this cpu for playing ut2k4 smoother

I installed it yesterday with valcano 12 and as5

to the proublem, no matter what settings i have the cpu running or ram or chipset or fsb or agp mhz at, The screen just turns off when testing or playing, sometimes it seams to freases up most of the time the screen turns off i can minimise the game or on futermark itll comeback on wtf?

sometimes when messing in the case with the wires it seams to get better or worse

any ideas???????