This pc originally had a problem with no vieo out and no boot beep etc. I could hear the hard drive start to read but then stopped reading and just spun. All of the fans are running full speed. It had onboard video out so to test that I put in a video card. Same problem. At this point I decided it would be quicker to start swapping parts. I installed a brand new mother board. PCChips M825G. It says it supports my Athlon A1400AMS3B processor. I also installed 1 stick of new DDR memory. After installing the new board and memory I had the exact same problem. I figured the power supply might be it so I tested the output and all of the voltages were good. Just to be sure I replaced the power supply. Still the same problem. So next I stuck in a different processor. Same problem. Now I'm thinking maybe the mobo is shorted so I pull it out of the chassis and lay it on an insulated board. All I had connected to it were the fans, the keyboard, the monitor, the speaker and the power switch. I STILL HAVE THE SAME PROBLEM! I'm about fit to be tied. Everything but the hard drive has been replaced and I still can't get this thing to run. By the way, I cleared the CMOS between every attemp to run it. Any suggestions besides junking it?