Motherboards that combine old-school server CPUs like that with, say, AGP video cards, are rare as hen's teeth if they exist at all, and their hardware is generally poorly supported by consumer versions of Windows, so if the idea here is to build a really exotic period gaming machine you'll probably be disappointed. Back in the day I gave away some 1.4Ghz dual-socket Tulatin ATX boards shortly after acquiring them because I genuinely couldn't think of much fun to do with a system based on a ServerWorks chipset that only had PCI-X expansion slots, needed expensive UltraSCSI hard disks (the ServerWorks chipset had a really lousy ATA controller, only really good for CD-ROM drives), and, well, just wasn't really much if any faster than a old rotgut AMD Thunderbird system even with both cores. (And would get its butt handed to it for any single-threaded task.) And I have no regrets.