OK so I just got a ps3 super slim from someone and it does not power up. No red light, sound or response. I just bought a replacement power supply and installed it and that did not work. I'm left to believe is the motherboard? But also there is the small chance that is the power button? But I striped the thing down to the motherboard and don't see anything odd like burns, scorch marks or burnt smell. Hell there wasn't even much dust. Add for the history I don't know anything what happen to it. Any ideas?