scenario_dave wrote:

I've tried unplugging all of the harddrives, dvd players and floppy
directly from the board. Nothing happens when I push the on switch. I
don't hear the fan start or anything. I haven't unplugged any of the
cards yet.

No, not from the motherboard. Unplug the *power connector* going from
the power supply to each of your drive devices. Is your PSU fan
spinning?

Make sure none of the cards are shorting to each other.