lionstorm
ok knowing how most ATX motherboards will not boot or complete a post when there is no fan or any working fan hooked up to the power supply, I would disconnect the power supply from the motherboard, and get an adapter for the cpu fan and connect it directly to the power supply and see if it works then, also if you have a multimeter you can check the voltage output from the motherboard cpu fan connetors, if good then you know you have a bad fan.
if you were to ask me, off the top of my head, I think that the whole problem is with the fan, so I would get a new fan
