With 3.2 Ghz being my target, due to the 680i lt MB having a max ram speed of 800 Mhz, I would like suggestions on what should try to get to my target. Of note, however, is that I do not want to increase the voltage on any components "too high" due to component burnout. (This especially applies to the FSB, as the 680i lt series is actively cooled, and always runs very warm.)
I am using Prime 95 for stability testing. Further, with the 3.1 Ghz current speed, Speedfan reported a max temp of 55c. (However, it usually ran ~50c.)
Your not over volting your vcore, well within specs for your Ram, got GOOD cpu temp. You shouldn't have any problem with 3.2 Ghz on a E6750.
The only thing I can see (of what you have posted) is I'm sure your Ram is NOT rated for 4-4-4-8 @ 2.0 Volts. I would change to 4-4-4-12 (15) or even 5-5-5-15 @ 2.2 Volts to rule out a Ram problem. Once you rule it out as a problem you can reduce the voltage and tighten up the timings.
I assumed the ram should be able to handle 4-4-4-8-2T at 800 with 2.0 volts, since the review successfully ran them at 4-4-4-8-2T at 1066 with 2.35 volts. But, as all know, all chips are different...especially the later revision.
Will update with new information tonight once home from work and testing proceeds.