|It's either the motherboard or the processor. You could try flashing the BIOS from a floppy, but I'm not sure you'll even be able to do that as it doesn't sound like your computer boots far enough.|
Getting a replacement motherboard will most likely fix it, but there is the slight possibility that the CPU is bad.
PS: Try resetting the BIOS to defaults using the jumper on the motherboard. Also check your power supply.
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