I have an eMachines T-model machine and about 2 weeks ago it started sputtering while not turned on. (The power light blinked slowly and then sped up and it sounded like it was trying to turn on each time it blinked). This would happen for a few minutes then it would stop then start again after a few minutes. If I turned off the power strip it stopped, but when I turned it back on, it would start again. I couldn't get my computer to boot or power on at all. I unplugged the machine and let it sit for a while and when I plugged it back in, nothing would happen. I pulled it apart and checked all the parts but the mother board in my friends computer and everything works fine. When I pulled out the power supply there was a loose transistor rolling around in there. I thought that might have been the problem so I ordered a new power supply. (same as the one I had.) I tried the new power supply and my machine still won't power on. Sounds like it might be the motherboard, but wanted to know if anyone else had some ideas.