Ram Speed and overclocking

[ziegemon]

I don't fully understand how Ram stock frequencies work into overclocking.

Is it much better to run linked/synced?

If you were wanting to push FSB over 450, would there be significant performance change between running ddr2 6400 unlinked at a stable frequency, and having higher frequency ram that's linked, underclocked, with decreased letencies?

Should high quality ddr2 6400 be able to go beyond 450? If so would that require increased voltage?

Please let me know what you all think.

danke,

 

[jeremyrailton]

depends on your ram. I have had Patriot and Crucial RAM that would. For the voltage, at those speeds, probably 2.2. If all you have are options like +.1, you'd probably have to do +.4, assuming the stock is 1.8.

 

[ziegemon]

I have corsair xms2 6400 5-5-5-18 1.9v

Bios wants to put it at 1.8, but spec sheet says 1.9. I've got it manually set at the corsair specs, running at 425MHz FSB. I'd guess corsair would be correct over EVGA/Nvidia