Great link anort.
Thepunshment : Could be your memory, but my guess is its likely your mobo. (corsair is making pretty good psu's these days so I doubt that is your problem)
Go through the list, try some other ram (or even one stick or set), if that doesn't work, swap your motherboard.
Also, did you use any aftermarket cooling? If so, if you hung them on there wrong, you can short out your board.
Been there, done that.
BTW, what video card are you using? It's not on the wish list.