Someone unplugged a Mac Mini that was powered ON. When we tried to plug it again, the computer won't turn ON. I have gone through Apples troubleshooting (unplug/plug, wait X seconds, reset SMC etc), but nothing worked. I tried to switch the power supply with another Mac Mini I had, but it still wouldn't turn ON (the other turned ON so the power supply was fine). So ruling out the power supply, Im pretty sure its not the hard drive, what else could it be? Is it even worth it to try to have it fixed if its something on the mother board?