@remix0120,
You have to use both the CPU and GPU in your SMBIOS consideration,
For example take your i5 4570 CPU which is Intel 4th Generation Haswell architecture.
First find all the matching SMBIOS's for Haswell class CPU's (I use
MacTracker) :-
iMac14,1 which shipped with an Intel Core i5 4570R and Intel Iris Pro 5200 Graphics
iMac14,2 which shipped with the following CPU's
Intel Core i5 4570, 4670 or Core i7 4771
These system shipped with either NVIDIA GeForce GT 755M, GeForce GTX 775M, or GeForce GTX 780M
iMac 14,3 which shipped with the following CPU's
Intel Core i5 4570S or Core i7 4770S
These systems shipped with a Nvidia GT 750M dGPU
iMac14,4 which shipped with a Intel Core i5 4260U and Intel HD Graphics 5000
iMac15,1 which shipped with the following CPU's
Intel Core i5 4690 or Core i7 4790K
These systems shipped with AMD Radeon R9 M290X or Radeon R9 M295X
------------------------------
So having narrowed down our on CPU generation we can now choose based on our GPU.
We can ignore the iMac14,4 as that uses a mobile class (U series) CPU.
- If you have no dGPU then use iMac14,1
- If you have a Nvidia GPU then use iMac14,2 or iMac14,3
- If you have a AMD GPU then use iMac15,1
All of the above SMBIOS's expect the IGPU to be enabled and configured as 'Headless' .... see this guide for more information on how to configure a IGPU as "Headless"
An iDiot's Guide To Lilu and its Plug-in's Last Update: 22nd Jan 2021 (Add note about OpenCore config.plist modifications) About this Guide Note: This guide was written when Clover was the boot loader of choice as such the config.plist examples in this guide are mostley Clover specific ... if...
www.tonymacx86.com
Cheers
Jay