Pc Wont turn on HELP!!!!?

Hey guys

I have a Problem with my pc

here is what happens:

http://www.youtube.com/watch?v=b92dj4yesMQ

here is my story

Last night i installed some programms and had to reboot the pc after that and than this happend!! so left it and went to bed next morning it happend again so i popped in the vista disc and it booted up so i thought it was fine and i shut it down like 1 hr later. Now i come to my pc and it happens again, note that i installed windows vista 2 days ago on this new pc. I tryed the vista disc again but it just wont boot up im fustrated because i dont wanna reinstall windows vista again cuz i just did it 2 days ago when i got my new pc and had to renistall my hdd, now i got all my dada on it again and i dont wanna move it again and reinstallthis crap does anyone have an idea what this could be and how to fix it?? thanks