I tried the above and its not the power suply
but whats suposed to happen
when I press f2 it just says reading nvram got my hopes up
left it on that screen 5 hours nothing happened
I am not good at building my computers, but I would take out the graphics card and check your drivers, firmware, BIOS, pretty much everything and update whatever you can. If your still having the problem, call your computer maunfacture, maybe they can help.
My dad put in new RAM a new Video Card and a new processor into my brother's computer and we couldn't get it to work. We called Dell and they told us exactly what to do.