My computer won't turn on. I followed all of the procedures like reseating ram, unplugging all power cables, removing video and sound cards, etc. Even though the computer will won't turn on, the motherboard light is on. I was told that the motherboard was the problem and that I will have to buy a new one. My question is if the light on the motherboard lights up, but the computer won't turn on, could the problem be something other than the motherboard?