OK it's a while since I built my current system so the new specs are confusing me and I need help please.The new Intel E6850 has a FSB of 1333MHz, I assume that means a real FSB of 1333/4 (333MHz), is that correct?If the above is true and I want to o/c a bit would PC6400 DDR2 RAM (real speed 400MHz) be OK?Or does the E6850 need to have DDR3 RAM and a mo/bo that supports DDR3?I notice that Gigabyte have a mo/bo that supports both DDR2 and DDR3 but it implies that DDR2 will only provide a FSB of 1066.Help!!!

"The new Intel E6850 has a FSB of 1333MHz, I assume that means a real FSB of 1333/4 (333MHz), is that correct?"CorrectThe DDR2-800 at 400mhz will allow you to take the FSB from 333 to 400 without overclocking the memory and maintaining the 1:1 ratio. "but it implies that DDR2 will only provide a FSB of 1066"Doesn't make sense as the FSB is the FSB. The memory is driven by the FSB, not the other way round.If you set your FSB at 400, and leave the ratio at 1:1 the memory is going to try and keep up no matter what you have in there.To get 1333 FSB you actually only need DDR2-667 at the 1:1 ratio.800 and 1066 DDR2 obviously gives you more overclocking headroom.Glenn

Thanks for the explanation Glenn, it helped a lot.The confusion over DDR2 only providing a FSB of 1066 was caused by a couple of graphics on Gigabyte's web site for a mo/bo that supports both DDR2 & DDR3."DDR3 "DDR2 1333" 1066"(Hope the formatting worked out OK).