So I bought a computer about a year ago that the seller thought was broken and in reality he just built it poorly. Inside is a fx 9590 that is extremely unstable above 4.84 ghz. I've tested quite a bit and had to disable default settings with turbo because of this. It's also worth noting my mobo often seems to have power issues with USB ports. My power supply is 850w. I wanted to know if it's worth a shot to simply replace the mobo and hope for better performance from my cpu or should I simply build compelely new?