Originally Posted by 10acjed
nForce 200 - MCP - SPP all are different chips not sure exactly which is which, but I think the "south bridge" is the MCP (Media Communications Processor)
It is found on all boards.
Where the nforce 200 id the one that is essentially just a nvidia chip (SLI)
But I may be wrong as well, I never got that technical about it.
However I have yet to see anyone not get to the limits of the cpu needing more than 1.4 CPU FSB - 1.5 SPP (not sure if its actually needed but never tried it lower) - Auto on nForce 200
Ok, that's the way I understood things too. So if we take the MCP to be the south bridge then there is no voltage adjustment for the south bridge available in the 750i FTW BIOS. Is that correct?
My previous board was a 680i - (Striker Extreme) - which did have a voltage adjustment available for the MCP. I think that was because the second GPU in an SLI set up fed through the MCP on that board. Tweaking the MCP voltage could provide better 3D graphics performance with an SLI set up. I suspect adjustable voltage for the MCP is probably not needed where the NF200 chip is used to provide the SLI capability, bypassing the MCP completely. However, what I "suspect" and what is actually fact have sometimes been very different things.
I understand what you mean about reaching the limits of the CPU but that isn't my prime concern. I'm after max stable 3D graphics performance as my #1 goal. Max CPU speeds do, of course, play a huge part but other factors do to. For example, I have found on both these boards that a PCIe Freq. setting of 128 really helps up my 3Dmark06 results. Took tons of reboots and hours of experimenting for me to figure that out. I realize that's useless info to those who only care about max CPU speeds but gamers might want to give it a try.