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#11
You won't have much luck overclocking unless you use the correct divider for your memory along with some precise voltage adjustments. I noticed you are using a 6GB memory configuration. The only way to achieve this with your board is to mix different Ram sets together which is always a bad idea.
Suggest you go to a 4GB configuration for overclocking and if you plan on overclocking the FSB be sure and use a stable divider. I have a chart that will work for the 680i in case you aren't sure which dividers are stable.