This is my first posting after reading great info on this forum for a long time; hopefully someone can help me better than emachines tech support. I have an emachines T2792. I'm a mac video guy but needed something simple for internet and word. I've had this machine for almost 3 years. Recently, the computer shut down out of the blue. Wouldn't power up at all. After doing some research, I decided to purchase a new power supply (350W upgrade). Installed it...no power still. Did more research and found out the MoBo goes when the PSU goes many times. Purchased a used MoBo on Ebay (the person claimed to have tested it working fine). Installed new MoBo and now I turn on the power switch in the back, fans comeon, yellow led in the front, and that's about all that happens. I hit the switch in the front (do you have to do this with the new switch in the back) and I get nothing. Almost forgot, I am getting power to the monitor. Any ideas?