The processer fan didn't make a whole revolution?
It doesn't take much to move that small of a fan.
I would think twice before using a new psu and thinking all was ok.
Look for swollen capacitors on your mobo.A small bit of swelling does not mean that the capacitor is bad,it could mean that the current travelling to it is perhaps faulty.As well clean your motherboard well so as you can see any hot spots on the circuitry.
Just a thought,good luck.