Look for an option under your DRAM settings called command rate....should be somewhere near the ram timings. I notice on my socket 754 system going 1T gives a tremendous boost in performance but on my new AM2 system, 1T is no faster at all. Generally 1T is faster, but T2 will allow better overclocking and stability.
Command or CPC.
2T vs 1T will afford more stability if needed but will cost about 3-5% in performance in real world apps. Don't go by bencmarking the two settings, they are deceptive and can display up to a 30% differance which is untrue.
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