I previously had to return a motherboard due to malfunction with the 24 pin cable and the PSU connector. I recently bought a new motherboard and anxiously plugged in the 24 cables between the motherboard and the PSU and the PSU fan did not come on. No other parts were inserted. I'm wondering if there was not enough power to run the fan or if I could possibly be looking at a PSU issue?? PSU works with paperclip method.