Sonny said:
At the cost of weaker performance through your AGP/VC & PCI/storage(a good example)=. The idea of FSB overclocking is to speed up the whole systen & not just the CPU to NB relationship.
Yes, you are correct, there is a trade off between CPU/mem high FSB and PCI/AGP. This is why the KT266a (1/4 divider) still holds the overall speed records, because at FSB = 200 its PCI/AGP are running faster than the KT333 or KT400. But most PCI/AGP cards can't go that fast.
At this time, however, I believe the CPU/MEM improvements far outweigh the PCI AGP overclock. With a top of the line video card, the gaming bottelneck is in the CPU to MEM bandwidth, not the CPU to AGP. In SETI, the limit is CPU to MEM, etc..
For most applications I use, a FSB = 200+, with memory at DDR400+ speeds and PCI/AGP at 33, would give me better performance than FSB = 180, PCI = 36. The extra 20 mhz of memory / FSB will give me better performance than 3 mhz of PCI.
Now, IMHO, I am more in favor of a 1/6 divider instead of a PCI lock at 33. With a 1/6 divider, I can hit FSB = 200+ and still OC my PCI, AGP, which I believe is a good thing.
AND, while I have seen no PROOF of this, OTHERS hope that a PCI / AGP LOCK will allow them to run the PCI AGP INDEPENDENT of the FSB, so they hope that they could run PCI = 38, with ANY FSB. We'll see if this materializes with the nforce2, I doubt it.