kpeterk said:
Yes, I'm positive. Apple menu says 1.6 GHz. I ordered it through Apple refurbished. I wonder if I got a 1.8 mainboard with a 1.6 GHz cpu? I know that the 1.8's have PCI-X slots. How can I tell if I have PCI or PCI-X slots? They also sent me double the memory by the way....
There have been reports on Apple's own discussion forums of the same thing happening with another G5 1.6 owner. It looks like Apple is refurbing returned single 1.8 models as 1.6 models...hence the extra 4 memory slots. I don't think you can tell what type the expansion slots are by checking the system profiler. I'm not sure if there are any physical differences either...I'd need to check the PCI/PCI-X specification to see what it called for with regards to the physical dimensions and appearance of the slots themselves.
Not a bad score though! The number of RAM slots is probably the biggest complaint levelled at the 1.6GHz G5 (apart from the dollar/speed ratio), but Apple seems to have solved that problem rather nicely for you. If you get any further insight into the actual identity of the board you have (perhaps the system serial number may provide a clue as to the original CPU speed of your system board?), let us know. Your discovery (and the previous one reported on Apple Discussions) seem to indicate that the G5 CPU modules may be relatively interchangeable between the different motherboards, which hopefully means that CPU upgrade modules won't be totally impossible for 3rd party manufacturers to produce in the future.