The PCI bus PowerMac models are:

model	CPU & MHz			PCI slots?
7200	601 at 75, 90, 120		3
7500	601 at 100			3

7600	604 at 120, 132			3
8500	604 at 120, 132			3
9500	604 at 120, 132, 150		6

8500	604e at 150, 180		3
9500	604e at 180MP, 200		6

(you find the PPC 603e processor in Apple's "performa" consumer machines,
and in the laptoys because of their lower power consumption).

Now, a direct quote from the Apple Tech Info Library article entitled "PCI
Expansion Bus Architecture Description (9/95)":

	One point that is especially significant is the change in
	software that the move to PCI represents. All Apple
	computers with PCI will have built-in Open Firmware
	software, which is a standard (IEEE 1275) for booting PCI
	cards in an OS-independent environment. Using Open
	Firmware gives Apple flexibility in its choice of future
	operating systems.

The article in the TIL was last updated 9/95. You can find it at
http://til.info.apple.com/

	Erik E. Fair <fair@clock.org>