Preamble and Max async Latency, what are they?

[Mikey1280]

Hi I just read this on another forum

Does the Epox bios have the option for Preamble and Max Async Latency. If it doesn't, then you will have trouble hitting 330+.

DFI all the way, those options are there for a reason, for max flexibility.

What options do you have to change regarding preamble and async latency for best overclocks, I take it they have something to do with the memory? Guys with Dfi boards what have you got yours set at please?