GUIDE How to Enable AMD RX 6800, RX 6800XT and RX 6900XT on macOS Big Sur and Later

[Nixgehtmehr]

Done, and twice NVRAM Reset.

Lags still there, maybe worse. Not shure

Video and EFI here:

EFI - Google Drive

drive.google.com

 

[EliteMacx86]

Done, and twice NVRAM Reset.

Lags still there, maybe worse. Not shure

Video and EFI here:

EFI - Google Drive

drive.google.com

Delete all the previous config.plist from the directory and only keep config.plist - the main final one.

Also, in which PCIe slot you have installed the GPU and what display connection are you using? HDMI/DP?

 

[Nixgehtmehr]

Delete all the previous config.plist from the directory and only keep config.plist - the main final one.

Also, in which PCIe slot you have installed the GPU and what display connection are you using? HDMI/DP?

Main PCI Slot for GPU. Connected via Display Port to two Monitors - both set 1440p 144Hz

 

[EliteMacx86]

Main PCI Slot for GPU. Connected via Display Port to two Monitors - both set 1440p 144Hz

Reset the monitor, try to change the cable, and then check. Also, you can try one monitor at a time. Try HDMI too.

 

[Nixgehtmehr]

Reset the monitor, try to change the cable, and then check. Also, you can try one monitor at a time. Try HDMI too.

Tried that already. But I think if it is cable/monitor related - why are my background wallpapers corrupt? Doesnt make sense.

Must be something related with the new 6900xt card but the card works perfectly on the same computer with Windows and Linux.

I changed to single monitor setting and the lags are the same - today it gets so worse that the computer stops completly and restarted.

 

[EliteMacx86]

Tried that already. But I think if it is cable/monitor related - why are my background wallpapers corrupt? Doesnt make sense.

Try a clean install with the new EFI.

Must be something related with the new 6900xt card but the card works perfectly on the same computer with Windows and Linux.

All uses different drivers/kernels so the output can differ too much.

I changed to single monitor setting and the lags are the same - today it gets so worse that the computer stops completly and restarted.

Try a clean install and then check. Try Monterey or Ventura.

 

[Nixgehtmehr]

Tried a clean install. Came until the first User Dialoge for Language, Wifi and so on. Then the Computer always chrashes and reboots. No chance. Tried serveral times - always reboot.

My Radeon 6900xt seems not be able to work with Hackintosh :-(

 

[EliteMacx86]

Tried a clean install. Came until the first User Dialoge for Language, Wifi and so on. Then the Computer always chrashes and reboots. No chance. Tried serveral times - always reboot.

My Radeon 6900xt seems not be able to work with Hackintosh :-(

What's the GPU Vendor?

 

[Nixgehtmehr]

What's the GPU Vendor?

Biostar Radeon 6900xt

Tried it with my old 5500Xt - chrash identically - rebbot during enter the Language setting. EFI related? I don't know what to do, I'm going around in circles. Maybe my Mainboard is defect?

EFI - Google Drive

drive.google.com

 

[EliteMacx86]

Biostar Radeon 6900xt

Tried it with my old 5500Xt - chrash identically - rebbot during enter the Language setting.

It's then either your NVMe or the PSU for sure. It could be the CPU and memory too. But start diagnosing the system from NVMe, then PSU, then the CPU and lastly the memory.