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

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@yosoyoco I am trying to figure out how to modify my DMAR table but its not clear what is needed looking at your modified DMAR. Here is my DMAR, if you can help much appreciated:
 

Attachments

  • System DMAR.zip
    882 bytes · Views: 23

CaseySJ

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@yosoyoco I am trying to figure out how to modify my DMAR table but its not clear what is needed looking at your modified DMAR. Here is my DMAR, if you can help much appreciated:
Please see this post, but this is not needed on X299 systems unless your WiFi and Ethernet do not connect after enabling AppleVTD.
 
Joined
Dec 13, 2013
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117
Motherboard
Gigabyte Z390 Designare
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i9-9900K
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RX 6900 XT
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** Enabling AppleVTD on Z390 Designare with No Impact to WiFi/Ethernet **
Credit: @yosoyoco


Finally we are able to enable AppleVTD without incurring the side effects of broken WiFi and Ethernet. Thanks to @yosoyoco for solving the final piece of the puzzle!

Steps:
  • BIOS --> Enable VT-d
  • OpenCore --> Uncheck DisableIoMapper from Kernel Quirks
  • OpenCore --> Remove dart=0 from boot-args if it exists
  • OpenCore --> Add SSDT-DMAR.aml (attached) to ACPI --> Add section as shown
  • OpenCore --> Delete DMAR from ACPI --> Delete section as shown
  • Reboot
Once this has been more fully tested I'll incorporate it into next month's OpenCore 0.7.2 release.

Warning:
  • The attached SSDT is only for Gigabyte Z390 Designare only.
@CaseySJ I followed the instructions and now I've got AppleVTD, WiFi, and Ethernet all working with 128GB of RAM! Mad scientists in this group for sure! :headbang:

1625673554118.png

1625673703818.png

1625673572665.png
 

CaseySJ

Moderator
Joined
Nov 11, 2018
Messages
19,138
Motherboard
Asus ProArt Z690-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
@CaseySJ I followed the instructions and now I've got AppleVTD, WiFi, and Ethernet all working with 128GB of RAM! Mad scientists in this group for sure! :headbang:
The sheer madness of AppleVTD week continues! ;)
 
Joined
Feb 5, 2011
Messages
118
Motherboard
Gigabyte X299 AORUS Gaming 7
CPU
i9-7900X
Graphics
5700XT
Mac
  1. Mac Pro
Classic Mac
  1. Apple
  2. iBook
  3. Performa
  4. Power Mac
  5. PowerBook
  6. SE
Mobile Phone
  1. Android
Please see this post, but this is not needed on X299 systems unless your WiFi and Ethernet do not connect after enabling AppleVTD.
Yes, ethernet is not connecting after enabling AppleVTD which is why I asked for help.
 
Joined
Jun 6, 2020
Messages
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Motherboard
Gigabyte Z390 Designare
CPU
i9-9900K
Graphics
RX 580

Attachments

  • SSDT-DMAR.aml
    200 bytes · Views: 37
Joined
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Gigabyte Z690 Aero G
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Random observation for those with VT-D enabled and who use VMware:

VMWare either needs to be fully reinstalled or need to double check that security preferences did not get reset for the drivers. Tested on both Big Sur 11.4 and Mojave Had a heck of a time trying to get peripherals to reappear even though system prefs said the driver was unblocked.
@qthegaijin

I have VT-D enabled on Big Sur 11.4 and started up VMware Fusion 12.1.2 without problems. I had virtual machines for Windows 10, Linux Mint, Catalina, and Mojave all suspended. Each reopened without incident and seemed to be running as they usually do.
 
Joined
Jun 6, 2020
Messages
58
Motherboard
Gigabyte Z390 Designare
CPU
i9-9900K
Graphics
RX 580
@yosoyoco Thanks so much, I have it loaded but with VT-D I still do not get any internet, with VT-D disabled and using this patch I do have internet. Perhaps it needs a revision?
Can you export and post your PCIe list from Hackintool ?
 
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