You can try removing "extra" parts like CDROM/DVD drives and whatever else (floppy?) to free up some Watts. That power supply was typical for the under 1GHz crowd.
Bob
I turned off my computer earlier today and when I came home this evening my Computer would not start... it will not even post, the CPU fan spins, the light on the MB is on, my video card fan spins, blah blah blah, just no post, HD is spinning also.
The computer worked fine, so I'm not worried it's a problem with any of the hardware, I dont see how I can fry something by simply shutting it off.
I took the MB out and set it up on cardboard to see if there was a short, still has no effect.
I also tried resetting the CMOS (I think) and it had no effect either...
Any other suggestions short of trying a new CPU or motherboard?
Current OS: XP
CPU: Intel P4 2.40
Video card: GeForce 4 Ti 4200
Power Supply: AOpen ATX 300GU

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