SMBios 19.x - iMacs 2019

[telepati]

This is the way to get the special build from the server.
Change system defintion to iMac 19.X, add boot args -no_compat_check then reboot into recovery drive are reinstall mac os on the same drive, without formatting,your files will be kept.
After everything is finish, you’ll have the special build 10.14.4 for iMac 19.X, now it is safe to remove the boot args.

BTW I made this and it really installed special build. And just like you said no CPU Type.

 

[scottkendall]

BTW I made this and it really installed special build. And just like you said no CPU Type.

View attachment 399188

It has been noted else where that real Macs are not reporting the I9 processor correctly.

 

[ModMike]

I feel iMac19,1 is a better fit.

In what way, CPU profiles? What are the advantages of using the 19,X SMBIOS? I may just give it a go.

 

[pastrychef]

In what way, CPU profiles? What are the advantages of using the 19,X SMBIOS? I may just give it a go.

We know that the iMac17,x and iMac18,x use Z170 chipset.

We can assume that iMac19,x uses _370 or _390 chipset. This is naturally a better fit for those using 8th and 9th gen CPUs.

 

[mattystonnie]

19,X fits best coffee lake builds, also AMD GPUS.
I saw better cpu power management, linear idle.

 

[ModMike]

We know that the iMac17,x and iMac18,x use Z170 chipset.

We can assume that iMac19,x uses _370 or _390 chipset. This is naturally a better fit for those using 8th and 9th gen CPUs.

Makes sense. Has anyone seen any meaningful improvements or other benefits?

 

[ModMike]

19,X fits best coffee lake builds, also AMD GPUS.
I saw better cpu power management, linear idle.

Answered as I posted. Will make the change now, thanks!

 

[telepati]

But after the installed special build I am starting to get kernel panic when I try to shut down.

BTW which one is the correct;

-no_compact_check
-no_compat_check

 

[pastrychef]

But after the installed special build I am starting to get kernel panic when I try to shut down.

What is the panic?

 

[ModMike]

But after the installed special build I am starting to get kernel panic when I try to shut down.

Maybe I'll wait a bit....