After doing some research online, I am still a bit confused as to which speed of DDR2 would best suit my Q6700 CPU. I will not be overclocking the processor. I currently have PC5300 in my build, but with the price of PC8500 so low, I would like to upgrade. The problem is, I see others stating that running a memory to cpu ratio of 1:1 is best, which means, I would have to downgrade to PC4200 instead of uprgrading to PC8500. Any advice?