you will have no compatibility problems. yes, the CUSL2 officially supports the 133 mHz FSB, but this does not mean that it cant scale down to a 100 fsb or 66 fsb. already knowing that the only way to OC an intel CPU is through the FSB, a 700E running on 100 mHz fsb (which is default for the "E"s) will have a locked multiplier of 7. when the fsb is increased to 133 mHz, the CPU will run @ 933 mHz (7.0 x133mHz) provided the CPU will OC to that speed. and there is no need to worry about AGP and PCI bus speeds, b/c at an fsb of 100 mHz, the 2/3 divider will set the AGP bus @ 66 mHz. the 1/3 divider will set the PCI bus to 33 mHz. with an fsb of 133, a 1/2 divider will set the AGP bus to 66 mHz again, and a 1/4 divider will set the PCI bus to 33 mHz again. now i'm not sure which boards support these dividers, but the CUSL2 does since it officially supports the 133 fsb.
as for the "E" and "EB", the EB defaults at 133 fsb, so OCing it would require the user to raise the fsb above 133, and that is when dividers start to steer away from default AGP and PCI bus speeds, inceasing the chance of instablility of AGP and PCI slots. that is why people say that there is more headroom when OCing an "E" - the EB is already @ 133 fsb and can be pushed very little above that. those who hit an fsb of 150 are lucky in my opinion. and if they do this with an 800, they are extremely lucky. the 800E is not a good OCer, and thhe 800EB is even worse due to the above reasons. the difference between the 700s and 800s are only statistical, as stats show that, by chance, the 700s just tend to OC well and the 800s tend to OC poorly. but the difference between the E and the EB is very factual, and you will never find anyone who says an EB will OC better, or even as good as the E.
