3D Benchmarks :I ran Code Creatures, first at 275FSB, under SPD, PAT enabled in Chipset, and Standard in the Asus BIOS:

And Code Creatures again at 250FSB under the same conditions:

Next unto AquaMark3. First at 275FSB, once again SPD, and PAT enabled in Chipset, and Standard. Vcore at default and VDIMM remained at 2.85V:

To exemplify the difference between Manual and SPD settings under Chipset, I ran the benchmarks at the same 275FSB, with the exception of Manual setting in the Chipset menu, at CAS 3-4-4-8. While I noticed no impact on performance in Code Creatures, there was a significant (2K increase) difference running AquaMark3:

Next I ran 250FSB, and found no difference between running the memory on SPD or Manual at this frequency? I can only surmise, for this particular benchmark, and while at the higher FSB speeds, there must be some effect on the MCH under Manual conducive to higher frequencies:

Conclusion --->