That might have been useful knowledge to have had earlier. Apple, whether for Apple-ish reasons or because there are potentially embarrassing differences between them, in the same document as was the source for the above, states unambiguously:'Procedures for verifying the power supplies of other PowerMac G4 models differ substantially [from the QuickSilver, above]. Check their service manuals for detailed instructions'. You will need to keep that injunction in mind if you are tempted towards PSUs from other G4 tower models. Not the least implication is that voltages assigned to the pins of the PSU-to-board connector are different.

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