Several months ago I bought a bunch of new hardware for my computer including a new motherboard, graphics card, and a computer case. I eventually got everything working just fine after I formatted my hard drive and re-installed Windows 7.
A few days ago, I left my computer on and walked away. My girlfriend called me over because my computer seemed to be acting very strangely. It was restarting itself. I figured it was just a Windows update or something. It was stuck on the bios screen asking me to hit F2 or delete or something. It does this whenever the computer is completely unplugged because the motherboard apparently loses its bios settings when I unplug the computer. So I just turned the computer off and decided to figure it out later.
The next day I plugged my computer back in and tried turning it on. It wouldn't turn on. The LEDs on the motherboard came on, but it wouldn't turn on. After some time, I heard the beeps that my computer always makes when I turn it on. I went to the computer to see it stuck on that same bios screen again. It is randomly turning on when it's plugged in, but it NEVER turns on when I hit the power button and I can't get past the bios screen. If I hit delete or F2 or whatever, it does nothing. It just sits there.
I suspect this is something with the motherboard (EVGA P55 200 Classified). I got it used on eBay. Does anyone have any idea what might be causing this or how to fix it?