OK, I've undone everything I did. I've never used any third party overclocking tools, only the CCC Overdrive.
I've always used the "AMD clean up utility" after uninstalling from control panel (AMD Catalyst Install Manager)
I do have an AMD CPU (FX8350) and my motherboard has an AMD chipset (990FX)
I'm going to try again and install the 13.10 betas. This time I'm going to install them over top of themselves.