PC not working, so after looking at my evga 750i mobo I found this:
It appears she took quite a hit and burst in flames at some point. I am looking at possible replacements and found this and this. It’s all i could find that I think can cheaply replace the evga 750i, since the MB is a couple years old and I think new ones are an entirely different architecture.
The one issue I see is they use an Intel chipset; yours is nVidia. That can cause Windows to go squirrelly and necessitate a Windows reinstall. If you want to avoid that, perhaps you can find an used nVidia board using the same chipset off eBay or wherever?