We recently took a look at Intel's own official DDR chipset for the Pentium4 Processor, the i845-D, in the form of the MSI 845 Ultra ARU. MSI packed a load of features onto their upgrade to the original 845 Pro2 and we were very impressed. VIA and SiS both have competing DDR chipsets available for the Pentium 4 and the Shuttle takes the VIA option and uses the controversial P4X266 chipset.