The Asus P4T-E will support the Northwoods, it uses the i850 chipset and RDRAM. The P4B will also support the Northwoods, but it uses the i845 chipset and regular SDRAM. The P4B266 will also support the Northwoods (I think), but it uses the i845 chipset and DDR memory. Why not Abit, they make as good if not better motherboards and might be worth looking into.