Yet another brand that relies on external vendors, Viking allows searches by either entering the system/motherboard model directly or using pull-down menus. Viking was the third company to have RDRAM part numbers, and their key word search found every system we looked for (though their pull-down menus omitted a few).
Enter your model number and choose the correct unit from the list, or try to locate it using pull-down menus.
Choose the most appropriate module from the compatibility list
Choose a vendor
Viking was among the few to warn that "modules must be installed in pairs for dual channel support." Viking's vendor list does not include prices, but is short enough to make price comparison easy (though this still adds several steps to the purchase process.)