Like I stated earlier overclocking is an aspect of this board that exceeds most board's flexibility and stability. The options on the 680i are straightforward and user friendly and can usually get halfway decent results with most CPUs and certified memory combinations. Better results can always be obtained on overclocker friendly CPUs and the best SLI memory. Cooling the CPU and keeping the systems temperatures down via liquid cooling and internal air circulation are also aspects to consider if you really want to overclock your system to its maximum potential.
Our Test CPU is already at the top of the charts as Intel's 3.8GHz Extreme Edition CPU is still the fastest clocked single core CPU in existence, it overclocks moderately with air and much better with liquid solutions. For our standard tests here in our lab we use standard air-cooling as that is what the vast majority of people will be using in their systems. This board offers the best in old-school overclocking, as in the in the BIOS way. nTune is NVIDIA's Windows environment overclocking tool, but our success with the CPU was better using the BIOS method. We were only able to achieve about a 8-9% performance increase with our 3.8GHz CPU, but the options are there for better results, we got better results with the new Quad-Core, the 2.66GHz was able to clock all four cores to 3.0GHz, not a giant feat, but for Quad-Core not bad at all for non standard overclocking. We will have more on this later but time restraints kept us from more extensive testing at this point.