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ASUS Prime Z490-A, Intel Core i9-10850K, 64GB RAM, RX 5700 XT GPU

Joined
Jun 11, 2011
Messages
72
Motherboard
Asus Prime Z490-A
CPU
i9-10850K
Graphics
RX 580
Mac
  1. MacBook Pro
Mobile Phone
  1. Android
  2. iOS
Hey uniM!

Are you getting stuck at the OS install or at boot after installing OS?
First I would try disabling your eGPU and installing the RX 470 instead of the opposite.
Also you seem to have too many drivers in your EFI folder, too many useless drivers might mess up your installation or boot. Check out this awesome guide from Acidanthera about our specific Comet Lake builds.


BTW I found that OC 0.7.0 was much better than 0.6.5. But be careful not to mix OC versions,
your plist, drivers and kexts all have to be of the same OC version.

Here's a screen grab of my EFI folder.
Could you share your EFI folder, ( I will change sn and mb...) Thanks you in advance.
 
Joined
May 11, 2011
Messages
1,613
Motherboard
Gigabyte B550 Vision D
CPU
Ryzen 5900X
Graphics
RX 6800
Mac
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  2. MacBook
  3. MacBook Air
  4. MacBook Pro
  5. Mac mini
  6. Mac Pro
Classic Mac
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Mobile Phone
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Could you share your EFI folder, ( I will change sn and mb...) Thanks you in advance.
You are welcome to try my EFI on OC 0.6.8. It's specifically set for Asus Z490 Comet Lake.
I've also added the AMD boot-args ready for Big Sur, so all it needs is the AMD card fitted
and serials/UUIDs. It's already worked for a few folks. Give it a try.
 

Attachments

  • EFI for Big Sur 11.4 OC 0.6.8 Z490 Prime-A RHUB.zip
    21.6 MB · Views: 16
Joined
Aug 1, 2012
Messages
45
Motherboard
ASUS PRIME Z490-A
CPU
i9 10850k
Graphics
Sapphire RX 470
Hey uniM!

Are you getting stuck at the OS install or at boot after installing OS?
First I would try disabling your eGPU and installing the RX 470 instead of the opposite.
Also you seem to have too many drivers in your EFI folder, too many useless drivers might mess up your installation or boot. Check out this awesome guide from Acidanthera about our specific Comet Lake builds.


BTW I found that OC 0.7.0 was much better than 0.6.5. But be careful not to mix OC versions,
your plist, drivers and kexts all have to be of the same OC version.

Here's a screen grab of my EFI folder.

Hey, thank you :)

After 4 days of search and pain, I found that I needed just to plug my graphic card in, but it didn't work with CSM disabled in BIOS. So I had to enable CSM, then my RX 470 worked, and than I finally could go through installation script. :rolleyes:
 
Joined
Jul 11, 2021
Messages
2
Motherboard
ASUS PRIME Z490-A
CPU
Intel Core i9-10850K
Graphics
Gigabyte 1080Ti
Would someone please guide me what do I have to change to use this build with the internal graphics? I have a Nvidia 1080Ti connected which I wish to use under Windows and have the Intel Graphics run my mac os. Any ideas?
 
Joined
Jan 7, 2014
Messages
39
Motherboard
Z490-A Prime
CPU
i9-10850k
Graphics
MSI RX 6800 xt Trio
Mac
  1. Mac Pro
Mobile Phone
  1. iOS
Would someone please guide me what do I have to change to use this build with the internal graphics? I have a Nvidia 1080Ti connected which I wish to use under Windows and have the Intel Graphics run my mac os. Any ideas?
Great GPU which is unfortunately not supported anymore since High Sierra, even then Nvdia's driver were far from great. I would recommend switching to an AMD Radeon GPU instead. A Vega 56 or 64, or one of the newer 6800's or 6900's would work very well, since they are now supported in Big Sur 11.4. BTW there's a huge jump in performance from the Vegas to the newest generation, if you can find a card and afford it too...

Lots of info on this thread - and it's easier than it looks:
 
Joined
Jul 16, 2021
Messages
3
Motherboard
ASUS Prime Z490-A
CPU
i9-10850K
Graphics
RX 580
I followed this install guide exact and when I boot to install I get 4 OCS: No schema Errors, can someone help?
 
Joined
Jun 11, 2011
Messages
72
Motherboard
Asus Prime Z490-A
CPU
i9-10850K
Graphics
RX 580
Mac
  1. MacBook Pro
Mobile Phone
  1. Android
  2. iOS
You are welcome to try my EFI on OC 0.6.8. It's specifically set for Asus Z490 Comet Lake.
I've also added the AMD boot-args ready for Big Sur, so all it needs is the AMD card fitted
and serials/UUIDs. It's already worked for a few folks. Give it a try.
It doesnt work, kernel panic. I dont know why. But, thanks so much
 
Joined
May 11, 2011
Messages
1,613
Motherboard
Gigabyte B550 Vision D
CPU
Ryzen 5900X
Graphics
RX 6800
Mac
  1. iMac
  2. MacBook
  3. MacBook Air
  4. MacBook Pro
  5. Mac mini
  6. Mac Pro
Classic Mac
  1. Power Mac
  2. PowerBook
Mobile Phone
  1. iOS
It doesnt work, kernel panic. I dont know why. But, thanks so much
Have you double-checked your BIOS settings according to CaseySJ's Z490 Vision D settings page? Also what BIOS firmware version are you using?

Are you booting with the AMD card in place? If you are you either should remove it first and see if it boots on its own, or if add in the following boot-arg if you are using it > agdpmod=pikera. Otherwise remove this boot-arg.

Have you set any CPUID emulate settings in place? If you are using Comet Lake on Big Sur 11.4, they can be removed.

Other issues others have encountered on the Asus Z490 seem to be either NVMe or USB. If it is NVMe, try adding in NVMEfix.kext into the OC/kexts section and/or SSDT-NVME.aml into ACPI. If USB, make sure SSDT-EC-USB.aml, USBInjectAll.kext and XHCIPortLimit is enabled, while disabling any other USB kexts ie. USBPorts.kext or USBMap.kext.

If you still encounter problems, post a snapshot of what the kernel panic is referring to.
 
Joined
Jul 16, 2021
Messages
3
Motherboard
ASUS Prime Z490-A
CPU
i9-10850K
Graphics
RX 580
Any idea on how to install older OSX on this build?
 
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