I just picked up a 400 MHz IBM ZIF at Goodwill. PPCchecker reports
it as 750L and Lonestar Rev. 2.1 and as a copper based CPU. XLR8
Mach Speed Control 2.6.4 reports it as a PPC G3 750 10x.
However, when I set my XLR8 Carrier ZIF to 10X multiplier, or my
PowerLogix Carrier ZIF to 10X multiplier, the card does not work.
Yes, I set the bus speed to 40 MHz, so that overclocking would not be
an issue.
So, I'm guessing that the simple answer is that this ZIF has a G3
chip which does not support 10X multipliers. I'm a tiny bit puzzled
since MSC reports it as 10x but that could be a bug in that rev. of
MSC.
Can anyone tell me the details on how to determine if a copper IBM
PPC750 supports 10X or not? Revision number? Markings?
Jeff Walther
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