I have an older pc that was built by a local pc shop (now only handle commercial client), that originally showed symptoms of a faulty PSU. I replaced the original 300W PSU with a 350W PSU and it atleast boots to the WIN XP splash screen and would then power off suddenly. I wiped the drive to reinstall XP and now it gets half way through the install and powers off suddenly. Looking at the temp in the settings, I had it powered on for over an hour and the CPU temp never went above 110F. I have also noticed that the display while installing WIN XP gets weird characters scattered across the screen as if it is not refreshing correctly (my guess is the old 64MB N Vidia card is going out).
If anyone has any ideas I am more than welcome to entertain them as I have reseated everything on the MB, swapped out the PSU for a larger one, dusted the inside of the case like no bodies business and you could eat off of it. The only thing I can think of is possibly the CPU is going bad, which would be pointless to replace when you can just buy a new PC for next to nothing anymore.
