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ASUS X99 Boards - Big Sur (Not Compatible)

Joined
Sep 1, 2011
Messages
60
Motherboard
asus X99-a
CPU
i7-5820K
Graphics
Vega 56
Mac
  1. iMac
New Update

OC 0.6.7
macOS 11.2.3

1615723140776.png


Prerequisites:

*Nvram and MsrsE2 patched BIOS. If no MsrsE2 is patched then set AppleCpuPmCfgLock and AppleXcpmCfgLock Booleans to TRUE in Kernel\Quirks.

*Generate your own SMBIOS.

The whole process took 7 minutes and 3 reboots.

Good luck.
 

Attachments

  • EFI.zip
    7.8 MB · Views: 110
Joined
Sep 7, 2012
Messages
16
Motherboard
Rampage V Edition 10
CPU
Xeon E5-2683 v4
Graphics
Radeon RX 6800 XT
Mac
  1. Mac Pro
@jin.artemis Your EFI.zip was really helpful! I was struggling a lot with getting USB to work on my SABERTOOTH X99, when I realized that I should just set "Intel xHCI mode" in BIOS to "Disabled" xP

Still, I'm having trouble running audio, did you manage to get it working? If you're using AppleALC, which layout-id are you using?
I have tried various settings, but no luck at all. So, switched to USB audio for now...
 
Joined
Jul 26, 2012
Messages
5
Motherboard
Asus X99-A
CPU
Xeon-E5 2683 V3
Graphics
AMD RX580
New Update

OC 0.6.7
macOS 11.2.3

View attachment 512206

Prerequisites:

*Nvram and MsrsE2 patched BIOS. If no MsrsE2 is patched then set AppleCpuPmCfgLock and AppleXcpmCfgLock Booleans to TRUE in Kernel\Quirks.

*Generate your own SMBIOS.

The whole process took 7 minutes and 3 reboots.

Good luck.
On my x99-a big sur always reboots on loading the installation.

I don't have nvram working after applying your patched bios. How do you get it working?
 
Last edited:
Joined
Nov 27, 2010
Messages
78
Motherboard
ASUS X99-A II
CPU
E5 2690v3
Graphics
RX 580
Mac
  1. iMac
Mobile Phone
  1. iOS
Joined
Nov 27, 2010
Messages
78
Motherboard
ASUS X99-A II
CPU
E5 2690v3
Graphics
RX 580
Mac
  1. iMac
Mobile Phone
  1. iOS
New Update

OC 0.6.7
macOS 11.2.3

View attachment 512206

Prerequisites:

*Nvram and MsrsE2 patched BIOS. If no MsrsE2 is patched then set AppleCpuPmCfgLock and AppleXcpmCfgLock Booleans to TRUE in Kernel\Quirks.

*Generate your own SMBIOS.

The whole process took 7 minutes and 3 reboots.

Good luck.
@seevolas just updated the patched BIOS. I can also use a USB thumb drive to boot and clean install Big Sur onto a new USB SSD drive without any issue.
If I want to upgrade my current Catalina, what is the best way to upgrade it? Direct or USB thumb drive upgrade?
 
Joined
Jul 23, 2012
Messages
227
Motherboard
ASUS X99 AII
CPU
E5-2696 v3
Graphics
RX 560
Mobile Phone
  1. iOS
Joined
Nov 27, 2010
Messages
78
Motherboard
ASUS X99-A II
CPU
E5 2690v3
Graphics
RX 580
Mac
  1. iMac
Mobile Phone
  1. iOS
Thanks for the reply the only problem is that I have an unlocked bios so that I can get 3.0 GHZ on all 18 cores otherwise only 2.4. GHZ.
Can you share your EFI please?
Thanks
So, what is your problem now?
 
Joined
Jul 23, 2012
Messages
227
Motherboard
ASUS X99 AII
CPU
E5-2696 v3
Graphics
RX 560
Mobile Phone
  1. iOS
So, what is your problem now?
I have to find out hot to remove the microcode from the bios file , so it will allow all core turbo boost on xeon's.
I used a bios from the net already made for this before....
That would be great for your system to, I saw people get 3.3-3.4ghz on all 12 cores turbo.
 
Joined
Nov 27, 2010
Messages
78
Motherboard
ASUS X99-A II
CPU
E5 2690v3
Graphics
RX 580
Mac
  1. iMac
Mobile Phone
  1. iOS
I have to find out hot to remove the microcode from the bios file , so it will allow all core turbo boost on xeon's.
I used a bios from the net already made for this before....
That would be great for your system to, I saw people get 3.3-3.4ghz on all 12 cores turbo.
Oh, I am not care on turbo boost, just make it more stable to run on Big Sur:lol:
 
Joined
Jul 23, 2012
Messages
227
Motherboard
ASUS X99 AII
CPU
E5-2696 v3
Graphics
RX 560
Mobile Phone
  1. iOS
I went from 44000 GB score to almost 52000 and is stable on Catalina (free performance boost)
Can you share your EFI folder I use Clover and not familiar with OC
 
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