MacOs 14 sonoma, Kaby Lake, which SMBIOS?

I have a z270 Motherboard, a Intel i7-7700k Cpu (Kaby Lake) and a rx 580 GPU. Until now i used Imac18,3 as Model Identifier. As I wanted to upgrade to sonoma, i had to change the Model to either Imac19,1 or Imacpro1,1. I would like to know which of these is better suited for my configuration (and if there's any negative consequences), and if there's a possibility to go back to Imac18,3 after installing MacOs sonoma.

Greetings

submitted by /u/grokochanel
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