Is there any advantage of running memory faster then FSB? i.e. 2.5x multi

[BottomsUp]

Or does this have no effect since the mem is waiting on the CPU anyway?

[kiwi]

Yep, there is unless your timings are too loose

[KJSatz]

http://www.madshrimps.be/?action=getarticle&number=1&artpage=1962&articID=472

Worth reading for you. They did not overclock in that article; overclocking miiiight make a difference.