Re: First time Pc Build Trouble!!!!!!
Never heard of the power supply brand before, but general consensus online says that it should be OK for a build like that.
If you haven't tried another monitor yet, that should have been the first thing. Alternatively, do you have any beeps on startup? Just the one normal one, or several?
It's also possible you have the system grounding out somewhere, even after 3 rebuilds. Try building up just the motherboard (with CPU & RAM) on a flat surface (wood desk is fine) and plug in the video card and power supply. Then try turning it on by shorting the PWR contacts. If it does it there as well, you've either got:
Dead Video Card
If you have another video card to test with, that would be ideal, the CPU&Mobo are hard to test without replacements of those. It could also just be a DOA board.