I accidentally hit the sleep button on my keyboard so I waited for it to finish sleeping. Hit the power button and there was a flash of life for a moment then nothing. No fans, no hard drive, no lights, beeps, etc. Unplugged RAM, unplugged and alternated power supply cables (there are two for some reason), removed video card, and nothing happens except for that same brief flash from the fan lights. I need to unplug something in order to get that flash because after it does it once it doesn't do it again until I do one of the things that I stated above. I'm ready to replace the motherboard and/or power supply but I wanted to get some input from people here.