So, playing WoW recently and my game crashes(which isnt uncommon.) A video driver switch solved the problem for a few weeks then it returned, I decided to live with it. After the last crash though, instead of freezing at that screen my monitor turned black, then gave me a no signal message. Scary stuff. I pressed the power button and shut my pc off. I restarted it, and everything seemed normal, after it got past the boot screen it just hung there forever on a lit up black screen, so I tried restarting twice - once with the last configuration that worked, and once in safe mod. Neither would start. Now im scared something is broken. First bet would be the video card, which is obviously still functioning to some degree at least. There is no visual mess on the bios screen/boot screens. (This is my second video card, RMA'd first one) I think maybe my power supply is killing video cards. Any thoughts/suggestions to fixing this?
edit* this is what im operating on
asus k8N mobo
420 watt psu