Contribute
Register

X299 Big Sur Support

Joined
Apr 18, 2011
Messages
1,325
Motherboard
ASUS ROG Z690 Extreme
CPU
Intel i9-12900k
Graphics
Radeon Pro W5500
Mac
  1. MacBook Air
  2. Mac Pro
Mobile Phone
  1. iOS
I decided to (finally) upgrade to a flashed BIOS from @izo1 and I was not able to boot into 10.15.6! I flashed back down to 2002 and everything worked fine again. I am using Clover 5120. Do I need to add some sort SSDT or something?

Thank you in advance!

SSDT-AWAC or SSDT-RTC0 (forwards compatibility with Big Sur).

My note on Post 3:
Users that updated their BIOS to 3006 or higher on pre Cascade Lake X motherboards needed to add SSDT-AWAC.aml to boot macOS Catalina/Mojave. Same with all Cascade Lake X refresh motherboards. For Big Sur, SSDT-AWAC is replaced with SSDT-RTC0.aml since Big Sur is a lot more picky with RTC. Asus didn't map regions 0x72 and 0x73 so the SSDT-RTC0.aml adds those regions in. Like @Loloflatsix mentioned, there are two versions of SSDT-RTC0 on my github. SSDT-RTC0-NOAWAC.aml (BIOS 2002 and below) and SSDT-RTC0.aml (BIOS 3006 and higher or all Cascade Lake X motherboards).
 

Attachments

  • SSDT-RTC0.aml
    172 bytes · Views: 75
Joined
Apr 17, 2012
Messages
206
Motherboard
Asus X299 Prime Deluxe
CPU
i9-7960x
Graphics
Vega 56
SSDT-AWAC or SSDT-RTC0 (forwards compatibility with Big Sur).

My note on Post 3:
Users that updated their BIOS to 3006 or higher on pre Cascade Lake X motherboards needed to add SSDT-AWAC.aml to boot macOS Catalina/Mojave. Same with all Cascade Lake X refresh motherboards. For Big Sur, SSDT-AWAC is replaced with SSDT-RTC0.aml since Big Sur is a lot more picky with RTC. Asus didn't map regions 0x72 and 0x73 so the SSDT-RTC0.aml adds those regions in. Like @Loloflatsix mentioned, there are two versions of SSDT-RTC0 on my github. SSDT-RTC0-NOAWAC.aml (BIOS 2002 and below) and SSDT-RTC0.aml (BIOS 3006 and higher or all Cascade Lake X motherboards).
THANK YOU!!
And just to confirm, I can use this RTC0 with Catalina and don't need to bother with AWAC, correct?
 
Joined
Apr 17, 2012
Messages
206
Motherboard
Asus X299 Prime Deluxe
CPU
i9-7960x
Graphics
Vega 56
So I tried again - flashed to 3006 but this time with SSDT-RTC0.aml in my patched ACPI folder and the same error occured! I even tried PCI0 instead of PC00 and LPCB instead of LPC0 (as per DSDT changes) and neither combo worked.
Am I missing something? Here is where it stops. No KP
IMG_5557.jpeg
I Edit: I should add I am on Clover 5120
 
Last edited:
Joined
Jul 14, 2019
Messages
103
Motherboard
ASUS WS SAGE/10G
CPU
i9-10940X
Graphics
Radeon VII
Mac
  1. MacBook Pro
Mobile Phone
  1. iOS
@Inqnuam @djlild7hina @losinka thank you very much

I already flashed my card. Should I edit DROM after installing macOS and put the generated TB3 SSDT to the EFI after macOS installation or can I generate TB3 SSDT with my MBP and put SSDT to the EFI before macOS installation?
 
Last edited:

Ellybz

Retired
Joined
Apr 16, 2017
Messages
415
Motherboard
Gigabyte X299 WU-8
CPU
I9-7980Xe
Graphics
RX 580
Mobile Phone
  1. Android
In case anyone is interested by such things ...

Here's my resource folder developed by @chris1111 for OpenCore. You'll need the driver OpenCanopy.efi to make this work. I also attached the necessary settings for your config.plist.
If you decide to use a custom Icon instead of the generic HardDrive.icns, you need to put a ".VolumeIcon.Icns" at the preboot of your APFS Volume. It can be found via the terminal command:
Diskutil plist
Once located ( look for APFS Volume Preboot ):
Put first the desired icon to be used on your desktop; rename it: .VolumeIcon.Icns

Open Terminal and type the following commands ( values for X&Y for preboot volume are found in diskutil list ):

diskutil mount diskXsY
sudo cp /Users/admin/Desktop/.VolumeIcon.icns /Volumes/Preboot/.VolumeIcon.icns
diskutil unmount diskXsY

Done. Enjoy your new boot picker look.

Screenshotpicker.png

Screen Shot 2020-08-16 at 12.46.31.png

Screen Shot 2020-08-16 at 13.11.53.png
 

Attachments

  • Resources.zip
    549.1 KB · Views: 133
Last edited:
Joined
Mar 18, 2017
Messages
1,029
Motherboard
ASUS ROG Rampage VI Extreme
CPU
i9-7940X
Graphics
2 X VEGA 56
Mac
  1. iMac
  2. Mac mini
Mobile Phone
  1. iOS
@Inqnuam @djlild7hina @losinka thank you very much

I already flashed my card. Should I edit DROM after installing macOS and put the generated TB3 SSDT to the EFI after macOS installation or can I generate TB3 SSDT with my MBP and put SSDT to the EFI before macOS installation?
Yes after flashing you must edit the DROM in your SSDT according to the guide , with your hack and put it on your EFI folder.
 
Joined
Mar 18, 2017
Messages
1,029
Motherboard
ASUS ROG Rampage VI Extreme
CPU
i9-7940X
Graphics
2 X VEGA 56
Mac
  1. iMac
  2. Mac mini
Mobile Phone
  1. iOS
I add the EFI 0C 0.6.0 EVGA X299
Works for :
- EVGA X299 FTW-K with Bios 1.23 or newer
- For other X299 brands with no AWAC (look on your system DSDT) and Bios updated for Cascade-Lake X processors
SSDTs / ACPI :
- must be adapted according to your system
Removed :
- MLB, Serial and SMUUID : you must GenSMBIOS and edit the config.plist
 

Attachments

  • EFI OC 0.6.0 EVGA X299.zip
    2.4 MB · Views: 111
Last edited:
Joined
Sep 27, 2017
Messages
56
Motherboard
Asus Prime X299 Deluxe
CPU
i9-7900X
Graphics
Vega 64
Mac
  1. Mac Pro
Mobile Phone
  1. Android
I add the EFI 0C 0.6.0 EVGA X299
Works for :
- EVGA X299 FTW-K with Bios 1.23 or newer
- For other X299 brands with no AWAC (look on your system DSDT) and Bios updated for Cascade-Lake X processors
SSDts / ACPI :
- must be adapted according to your system
Removed :
- MLB, Serial and SMUUID : you must GenSMBIOS and edit the config.plist

Have you updated your Prime x299 Deluxe? Thinking of trying to dual boot Mojave and Big Sur on my machine
 
Joined
Jul 15, 2012
Messages
76
Motherboard
Asus WS X299 SAGE/10G
CPU
i9-7980XE
Graphics
AMD Radeon™ RX 6900 XT
Mac
  1. iMac
Mobile Phone
  1. iOS
Hi,

Asus WS X299 SAGE/10G new BIOS version 3203 is out: anyone tried it?



screenshot_11.png
 
Top