The Power Macintosh 9500/132 was the first Macintosh to use the PCI standard, with six PCI slots available, with one always needed for the graphics card. The basic design of the logic board, called "Tsunami", was used by various Macintosh clone makers as a reference design. The 9500 was superseded by the Power Macintosh 9600 in February 1997. Utilizing a third party G4 CPU upgrade and the XPostFacto installation utility it is possible to run up to Mac OS X v10.5 "Leopard" on a 9500, making it the oldest model capable of running Mac OS X.
1. RAM can be interleaved to improve performance. 2. 2 MB video card can be expanded to 4 MB with 2 MB daughtercard. 3. In spite of the promo picture shown, the CD-ROM drive is standard. Exhibit on YouTube: http://www.youtube.com/watch?v=8ETDoJncAFI