What is the fastest G4 processor that will run in an PCI Power Macintosh with a ZIF carrier card?
G4 processors are limited to a 9x Bus Multiplier. This means that the speed of the processor cannot exceed 9 times the bus speed of the computer. The 8600 has a 50 MHz bus, so the fastest a G4 processor can run is 450 MHz. Even if you install a 500 MHz processor, it will still not run any faster than 450 MHz. However, some systems, such as the Umax S900 can run 55MHz. It’s a matter of trial and error detemining the limits of your exact system. Once you”ve found that limit, you may want to “back off” a step or two in the overclock to give a margin of error, just in case.
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