Overclockers New Zealand has posted a review on Asus P4B533 I845E Motherboard.
P4B533 packs with some heavy overclocking features. With BIOS version 1006, the highest selectable system FSB is 400 Mhz (in 1Mhz increment)!! I doubt anyone can hit 400 FSB at moment but it's good to know the option is there. CPU/Memory ratio can be set 1:1 or 4:3 when the CPU FSB is set to 133 and above. There is no 3:4 ratio in BIOS to pump the RAM speed up. However, there is a workaround for getting the 3:4 ratio ...More information at Overclockers New Zealand