First Answer:
Installing a processor from another, faster, G4 would probably not work as the physical layout of that area would not be the same.
Changing out the logic board would work but, you would find that the ouputs on the board did not match the output holes on the case.
Second Answer:
You would probably see a difference with the 1Ghz processor over the dual 500 Mhz. Dual 500Mhz do not equal 1 Ghz when it comes to processor speed.
There is also the difference in that way that a dual unit operates.
The 1 Ghz, on the other hand, operates as a single unit (duh!) all the time and should make a difference.
Of course, if you went with the dual 1.25 GHZ from either of those companies, you would see a major difference in speed.
Let us know how you get on
P
I want to upgrade my G4 PowerMac (dual 500 MHz Gigabit). I have some questions about it, since I know a lot more about PCs than Macs, on the hardware end.
First question:
I'm pretty sure I couldn't use a processor from a newer G4 (i.e., Quicksilver or MDD), because of bus speed and possibly need for more power. But, if I were to change out the logic board <b>and</b> processor and PSU?
Second question:
When it comes to aftermarket upgrages from Sonnet, OWC, etc., would I see any improvement with a 1GHz processor, compared to the current dual 500MHz? Or would I need to go with something much faster to see any benefit?
Thanks in advance.

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