It is not a faulty any thing but the mother board. The 4 pin connector right next to it should be powering the cpu as well and it has no damage what so ever. I would think it would have burned both the 8 pin and the 4 pin if it where a case of over current. I really think it was a bad solder joint. The psu is brand new. The cables are brand new. There is nothing older than 2 weeks in this computer. So please stop with the rust or bad psu excuses.