I just recently bought an ATX computer case and I transfered all my computer insides from my old ATX case, to the new one. The fans on the computer on's, I can also hear the hard drive going on too. I don't hear the usual beep from the computer when you on it, and nothing shows up on my monitor. I think it has something to so with my button board on my motherboard. I read my motherboard manual and installed it correctly, but still, i got nothing!