This is a continuation of my post on my main computer loosing the video signal or seeming to after a short time. First most obvious I switched from a video card to the on board video and that didn't help. Next based on pure guess I replaced the PSU thinking maybe the old one was unstable. Well I have it striped to the basics right now. New PSU, HD without an OS, memory, keyboard, mouse, and monitor. It is spontaneously rebooting after a couple of minutes. Amount of time to reboot decreases each time I try it.
I have put new thermal paste on the CPU and cooler but just touching the cooler with my hand no evidence of over heating. I can get it into bios but after about two minutes it just reboots or I loose video and it doesn't reboot. Which of those things happen seems to be random.
I don't have a spare memory stick, only one memory stick in computer, and the computer doesn't work long enough to run Memcheck.
Figure this may end up a replace parts till it works job. Should I next replace memory, CPU, or motherboard? I know you can only guess but I figure some of you out there have had a lot more experience. It is an ECS motherboard with an Athlon 64bit dual core CPU. I currently have a 1 gig stick of memory in it. My thought was to save money buy a 512 meg stick to swap out. If that is it I can buy a second stick. Seems memory is the next step but just am not sure. Any help or suggestions appreciated.