Doing a little investigating. Someone brought me a dell dimension 4300 with a 1.6g celeron, 400 fsb. It took a surge from a lightning strike. power supply is bad, with no output on the 5V leg. used known good ps to power board while using a post card. postcard dead as well. Took processor off and put onto a known good acer mobo w/ socket 478, good power , good memory, connected fdd, onboard video, postcard led's indicate good clk, bad bios, good OSC (what IS that?) good 3v, 5v, +12, -12 and the hex will read FF or 97. processor is cool to touch. (yes, I had the heat sink on it)
500 points for the response with the best explanation of what i'm observing.
One other thing... there's a RED led on the post card that flashes 3 times, maybe 3 seconds apart. it says RST..
Any help appreciated..