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[SUCCESS] Gigabyte Designare Z390 (Thunderbolt 3) + i7-9700K + AMD RX 580

CaseySJ

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Good morning all,
i tried to modify the DMAR ssdt, and now all the network interfaces and the antelope interface are working with four 16Go DIMMs in my z390 Designare. need to do further testing but everything seems to be ok for now. for those who want to give a try, here is the process:

Bios: Vt-d enable

Opencore:
  1. copy this Attached SSDT-DMAR.aml in your ACPI folder
  2. modify your config.plist
Boot Arguments -> Remove "dart = 0"
Kernel Section -> Uncheck "DisableIoMapper"
ACPI Section - Delete -> add this entry

View attachment 523829

ACPI Section - Add -> add this entry
View attachment 523830
Is this on Big Sur?
 
Joined
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lost only bluetooth this time lol Monterey
 
Joined
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That totally sounds like a plan! Thanks — will try shortly.
I'm using it on Monterey and looks like it fixed the issues when AirDrop Continuity Handoff, Connection to AirPods Pro, RSSI stopped working after wake-from-sleep
Screen Shot 2021-07-06 at 11.33.18.png
Screen Shot 2021-07-06 at 11.37.05.png


If Apple gives us back Bluetooth API in next Monterey versions I can make more checks related to my issues and theses kexts
 
Last edited:
Joined
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@CaseySJ
Could you give a try to the new SidecarFixup.kext to test new Monterey features? I can't do it by myself because my CPU is without GPU

Capture d’écran 2021-07-06 à 12.09.32.png


Or maybe this is only for Real Macs ?
 

CaseySJ

Moderator
Joined
Nov 11, 2018
Messages
17,951
Motherboard
Asus Z690 ProArt Creator
CPU
i7-12700K
Graphics
RX 6800 XT
Mac
  1. MacBook Air
  2. MacBook Pro
  3. Mac Pro
Classic Mac
  1. Quadra
Mobile Phone
  1. iOS
Hi @CaseySJ !
I have a clover + mojave. I want to conveting to OC + bigsur. Do i have clear all EFI old and MacOS partion old? thank you!
Please see Quick Reference spoiler at the top of Post 1. After doing Step 1 and Step 2, you can install Big Sur directly from Mojave (System Preferences --> Software Update). Always make a full bootable backup first!!

Screen Shot 2021-07-06 at 3.58.02 AM.png
 

CaseySJ

Moderator
Joined
Nov 11, 2018
Messages
17,951
Motherboard
Asus Z690 ProArt Creator
CPU
i7-12700K
Graphics
RX 6800 XT
Mac
  1. MacBook Air
  2. MacBook Pro
  3. Mac Pro
Classic Mac
  1. Quadra
Mobile Phone
  1. iOS
Good morning all,
i tried to modify the DMAR ssdt, and now all the network interfaces and the antelope interface are working with four 16Go DIMMs in my z390 Designare. need to do further testing but everything seems to be ok for now. for those who want to give a try, here is the process:

Bios: Vt-d enable

Opencore:
  1. copy this Attached SSDT-DMAR.aml in your ACPI folder
  2. modify your config.plist
Boot Arguments -> Remove "dart = 0"
Kernel Section -> Uncheck "DisableIoMapper"
ACPI Section - Delete -> add this entry

View attachment 523829

ACPI Section - Add -> add this entry
View attachment 523830
Holy $&#&$#!! You did it! It works on Big Sur!

Now we have AppleVTD enabled with more than 16GB memory and no WiFi/Ethernet issue!

Z390 Designare:
Screen Shot 2021-07-06 at 4.12.43 AM.png


What was the thought process that led to this solution?
 
Joined
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Hi @Elias64Fr ,
Yes, same memory
in this ssdt I just removed the reserved memory regions
I'm now on holiday and I can't test this. Anybody else tried this on z390? Can someone explain what "reserved memory regions" is for? What consequences can be if its taken out of DMAR?

Can be a solution to allocate less memory to "reserved memory regions"?
 
Last edited:

CaseySJ

Moderator
Joined
Nov 11, 2018
Messages
17,951
Motherboard
Asus Z690 ProArt Creator
CPU
i7-12700K
Graphics
RX 6800 XT
Mac
  1. MacBook Air
  2. MacBook Pro
  3. Mac Pro
Classic Mac
  1. Quadra
Mobile Phone
  1. iOS
And it works on Z490 Vision D as well, with modified SSDT-DMAR. Please visit Z490 Vision D thread for details and downloads.

Screen Shot 2021-07-06 at 4.33.33 AM.png
 
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