[Coda]

I hope you didn't get scammed, Serra. I would have been checking the power supply first -- plug a replacement power supply into the motherboard to see if it boots from that, and then if that fails start inspecting the motherboard for individual damaged components (usually capacitors that have swelled or leaked).

Did you think to keep your old RAM? Assuming there are open slots and it's the same kind of RAM you could have gotten a nice upgrade there too.