Can I replace the G4 1999 CPU board with Quick Silver CPU Board?

I've just grabbed a Power Mac G4 1999 with 400 MHz.

I'm thinking about upgrading the CPU board with the Quick Silver CPU board of 867 MHz.

  • Are their connectors the same?
  • Does the system take it?
  • Is there anything else I need to take care of?

Thanks for your help.

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