Apple PCI PowerMacs & Open Firmware (IEEE 1275)

["Erik E. Fair" (Time Keeper) <fair%clock.org@localhost>]

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@localhost>