Quote Originally Posted by OBR View Post
Ive tested LOT of cpus and mobos (now i have at home E6600, E6850, E6850 ES, QX6700, X3210, Q6600 ad 5 various mobos) and no one from these has a FSB wall! This si an myth! Every from this chip can work at 600x6, or for example 400x9 ...

I agreed, chips has max frequency wall it is clear, but FSB wall do not exists ... if you are thought you reached FSB wall on some CPU try it on another Mobo, and you will se no more FSB walls ...

For example my Q6600 can reach only 3.2GHz (at any FSB + multi) on 6 various mobos, but when i put it to EVGA A1, it is fully stable at 3.6GHz! It depends on mobo and cpu, no on FSB wall ...
While I agree with your comments on a motherboard limiting the maximum operating speed of a cpu (your example being 3.2GHz -> 3.6GHz) I have witnessed cpu's that have a limit to the speed that their FSB can go no matter what board.

I wonder however are we arguing there same thing here? I am stating that the cpu itself has a limit to how far it's FSB can be pushed, for instance I have tested a x6800 that will stop hard at 510 on a 680i, 2 different P965 board and a P35 board. Other cpu's I've tested have had similar limits cross platform give or take 5-7Mhz.

I have not be inferring that the FSB limit is to do with the motherboard, but rather the cpu itself, and, in relation to the graph I quoted, it is important that the same cpu be used to give an indication of what the boards are capable of.