Only managed to pull bits and pieces of info together from it, too bad I couldn't get a look at its insides so I can't really tell. Serial number YM547054R6U "Dual PowerPC G5 2.0Ghz" in "About this mac" In system profiler it actually indicated that it was PowerPC G5 1.1 or something like that, can't remember the exact wording. Also in system profiler it is indicated "Number of CPUs: 2", whereas in my CD Mini the wording is "Number of cores"! Uses PC2-4200 memory modules. 1MB L2 cache, 1Ghz Bus. Is this the older revision or the newer one?