An overtaxed power supply, overheating parts (not limited to the CPU) or failing motherboard capacitors. Check those areas.
Bob
I reformatted my hard drive, installed windows xp pro, then few programs, all worked well untill I've installed SP2 off MS site. The PC froze once the setup needed to reboot - everything clased out and only the blue wallpaper and mouse was visible. I've manually rebooted the system and it kept on becoming stuck on the windows xp loading screen. I've attempted to enter windows in few different mode (F
but it kept becoming stuck. I don't recall on which module it became stuck as the safe mode displays what is being currently loaded. I then entered my BIOS and only changed the Plug and Play OS setting to enable and then after identifying my CD and HD the system got stuck again. Now nothing happens as I turn it on. I don't have different RAM to test or processor but I took all of the other component out and disconnected the HD and cd-rom but only the CUP fan is working. However, if I connect the HD, it appears that its being turn on and then off again in a loop. Same occurs if I plug in the cd-rom, it is being constantly turned on and off. There is no video or anything. I've also attempted to take out the battery on the motherboard to reset the board BIOS, yet always the same story.
System:
Asus A7S333
256 MB Ram
AMD 1800+
Does anyone have any suggestions as what could be the cause? I have never gotten such problem before with any system.

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