Computer problem - HELP!!!!!!!!!!

[Sexzity]

This problem just got me. I have no idea what is wrong.

I woke up a morning and my screen was black, but the computer was turn on
Then i start reset it and then nothing
Okay, i did buy a new motherboard, ram and a amd. Installed it and boot the computer up. Then i had to reinstall windows. Then it worked. But the next morning, black screen again.
Down to the computerstore, got a new powersup. Installed it and start it up. Then i got a error. Then i tried with another graphiccard, but still errors. Then a new computermouse and keyboard. Still errors.
I cant install windows. I have tried 6 HDs, I have tried with new cables, another monitor.
So i have change everything and still Errors then i try install windows.


HELP!

[abz]

http://www.pcworld.com

[V_RocKs]

www.dell.com
www.ecomputers.com
www.fryselectronics.com

[bjjb]

video cards bad. thats the only thing ididnt see that you replaced

[potter]

If you replaced the mobo, ram, cpu, and power supply before checking the video card with that specific problem. My advice is take your computer to an expert and never open it yourself ever again.

Problem solved.