S900 Series, S910 Series. Remove secondary processor from Dual Processor machines. I think there are a number of things that make Vpower a terrific way to upgrade one's machine. Over a decade old, Tokyo-based Interware is by far Japan's leading manufacturer and seller of CPU upgrades. Next, our customer service is really first-class.
Tech support is toll-free.
We manage our stock very effectively, so that even our most popular items are virtually always in stock, and ready to ship within hours of being ordered. Finally, the product is a breeze to install and use. It's probably the most transparent upgrade many Mac users will ever make. The Vpower family of cards is also exceedingly reliable. Level 2 slot CPU upgrades for Power Macintosh machines.