Sidney

The modules are rated at an astonishing PC5000, which is roughly 313MHz (626MHz DDR) in laymans terms. OCZ guarantee the memory to run at 3.0-4-4-10 at those speeds, and we suspect that you will be able to achieve more than what you pay for if OCZ's reputation is anything to go by. While the timings don't seem blisteringly quick, when you consider that they're rated at 313MHz, the timings are pretty respectable. Bear in mind that both Gigabyte's and ASUS' SLI motherboards were stable at front side bus speeds lower than what these modules are rated at, even after removing the memory limitation by running a divider

Link
http://www.bit-tech.net/hardware/200..._el_dfi/1.html

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lazyman

Opteron 165 (2) @2.85 1.42 vcore AMD Stock HSF + Chill Vent II