Hi @klyjm!
I may have missed this above, but what’s your RAM freq and how does it compare to your CPU?  Could you be suffering from insufficient RAM speed or a mismatch between the freq of your RAM and CPU?  I’d poke around in the BIOS if you haven’t already. Also, keep in mind that overclocking RAM has seemed to have unpredictable effects for me in the past. Sometimes it seems to help, sometimes to hurt.
Good luck!
–SEH