I jump started the PSU and the Fan spun. Disconnected all peripherals. Left the 2 sticks of 1 gb ram each inserted and the video card and keyboard. Turned on and PSU, CPU, and case fans all ran but nothing posted on monitor. Then added DVD, system started and stopped as before. Disconnected DVD and connected HD, system started and stopped, tried again and this time stayed on but slight bit of smoke came off connectors to HD, which I pulled plug immediately. Seems I have a short some where. I have dissassembled everything and started over inspecting everything along the way. One thing I noticed was that once I had fans running, the switch would not turn system off, had to pull the plug. What does that mean? Also, found a cut in the wire that connects USB ports to front of Case, which could be source of short? So I disconnected that wire. I want to test each component one at a time as I reassemble system. Question, what is the sequence to do this or how should I do this and when should I see posts on the monitor? Example, if I have CPU, Ram and videocard, should I not see something being posted on monitor? Appreciate your input. Thanks.