Leave the CPU PLL alone, lower it a notch if anything. Try raising the CPU VTT. Adjust your memory latencies to what is recommended for your memory, not what I have listed. Have you been watching your temps while testing LinX? What are they peaking at? And what is your Vreg Temp doing under load? Use HW Monitor. Exactly which mobo do you have? Are you using the latest Bios?
in your settings you have it at 1.8? I used the latencies that are for my ram, which i believe is the same as the oens you listed anyway. The peak seems to be mid to high 70's...as for the vreg, i checked hwmon and i could not see anything like that (never even heard of that before now) As for the mobo i just have the EVGA X58 ATX. Yes, i updated to the latest bios as soon as i got the mobo, as far as i have noticed a new one has not come out since then.
I'll experiment a bit with it tomorrow...