Quote Originally Posted by Den Leiw View Post
maybe overclocking will not be possible with nehalem and Intel will force us to buy those 1000 $/€ cpus if we want high end stuff ¬_¬
From what I understand, the QPI links do set the base frequency that the processor multiplier operates on to dictate the final clock speed. Most boards should have the option to scale the base frequency of the QPI links. So anything with Tylersburg as a QPI hub will be overclockable from that knob there.

Questions still arise from how memory overclocking comes in. If one of the AMD guys could help me out as to how they setup their memory clocking it would be appreciated as I'm far to use to chipset straps and memory ratios. From my understanding, in K10, AMD uses memory ratios based off the HTT reference frequency ranging from 3:3 --> 3:8 for DDR2-400 --> DDR2-1066. Nehalem will most likely use a similar setup with the memory frequency being set off this base frequency.

The problem comes up, that the mainstream stuff (Lynnfield/Havendale) are going to have both integrated PCI lanes and even graphics. They receive their clock frequency directly from the PLL and thus all control over the reference and clock splitting is all done on die. Since none of the big 2 have done this yet, mainstream overclocking might become a thing of the past depending on how it's implemented.