I have having major wierdness on my computer. It is running an AMD 3200 chip with 1GB memory, 3 IDE hard drives, 1 IDE DVD Burner and 1 Sata 1 hard drive (which the machine boots from). I am not sure of all the hardware models of the individual equipment. The problem is this. I just installed Windows XP again after formating my Sata drive and it seemed to go just fine. I had the machine up and running for hours last night with no problems. I shut down the machine and then boot it this morning and it boots fine. However, after about a minute of running it just TURNS OFF. No errors, no nothing. Now nothing I do will turn it back on. After about 5 minutes, it turns itself back on and repeats the problem again and again and again. The only hardware change I have is a Sata 2 controller card I added about 2 weeks ago. I have not plugged in the Sata 2 drive yet. Have not had any problems so far with the controller card being in there. This does not appear to me to be a software problem, it seems more like a possible power supply problem. I know my handle here is "pcinfoman", but I am genuinally stuck here. Ideas?