Please refer to my previous question for reference:
I closed the other question because I was sure that this was a power supply issue. I bought a brand new GS 800 Corsair Power supply (800W), turned on my computer, it booted half way into Win 7 and then shut off completely. I went back to check garycase's answer on my previous question "Boot to the BIOS and just let it sit for a bit -- does it shut down then?"
when I did this with my newly installed PS, within 30 seconds to a minute it shut down completely again. Stone cold dead! What do I do now?? I just spent good money and the problem is still here. I'm really frustrated!