The first public demonstration of the new Power Macintosh — specifically, a prototype of what would become the Power Macintosh 6100 – was at an Apple Pacific sales meeting in Hawaii in October 1992. The demo was a success, and in the following months, the product plan expanded to include three models: the entry-level 6100, a mid-range 7100 housed in the Macintosh IIvx's desktop case, and a high-end 8100 based on the Quadra 800's mini-tower case. A fourth project, the Macintosh Processor Upgrade Card, was started in July 1993 with the goal of providing a straightforward upgrade path to owners of Centris- and Quadra-based Macintosh computers. The importance of this was especially significant for the Quadra 700, 900 and 950, which were not going to receive full logic board replacements. Computers upgraded in this fashion received new names such as "Power Macintosh Q650" and "Power Macintosh 900".