Originally Posted by iamchickenlover
yelled at it, threatened it
There's your problem. It got sad that you were yelling at it and decided to die.
On a serious note it sounds a lot like a dead mobo. I've seen quite a few of those. They generally do the same thing. It will power up the PSU, lights and fans on, but no post, no beeping. Sorry I couldn't offer an explanation in your favor...