5600 XT not compatible ?

[macaron35]

ok so unless i go for a RX 580, all other solutions need Catalina (?)

Most of the time, my computer will not be for gaming (gaming would be probably 5-10%) so i don't probably need more than a RX 580 and i assume that if i don't put all the details to the max I could play rather smoothly with that card

I really want to stick with Mojave for now

 

[Spaikys1]

no, all Navi cards require Catalina 10.15.2 or newer.

That explains why my RX5700 TX got only 7mb of memory, cos I have 10.15 Catalina am I right?

 

[Jamesbond007]

That explains why my RX5700 TX got only 7mb of memory, cos I have 10.15 Catalina am I right?
View attachment 452990

Yes. Your version of Catalina does not support the RX 5700 XT. Please update to the latest version 10.15.3.

 

[hoeveler]

Is there any special boot argument I need to have full GPU speeds? I noticed on Geekbench that there is a named difference between when I run a test of Metal vs OpenCL - "AMD Radeon RX 5600 XT" (Metal) vs "AMD Radeon RX 5600 XT Compute Engine" (OpenCL) but I think I'm running full supported speeds, etc?
My Geekbench 5 profile

 

[jabba559thqm]

Is there any special boot argument I need to have full GPU speeds? I noticed on Geekbench that there is a named difference between when I run a test of Metal vs OpenCL - "AMD Radeon RX 5600 XT" (Metal) vs "AMD Radeon RX 5600 XT Compute Engine" (OpenCL) but I think I'm running full supported speeds, etc?
My Geekbench 5 profile

Hey I have almost the same setup as yourself. Same board with 6800k and R9 390. How were you able to get Catalina up and running. Do you have an example of your EFI folder.

 

[lotsacaffeine]

How do you install a “boot argument” when you’re trying to create a Catalina installation to begin with?

 

[P1LGRIM]

How do you install a “boot argument” when you’re trying to create a Catalina installation to begin with?

How to Enter/Edit Boot Flags in Clover

How to Enter/Edit Boot Flags in Clover To boot OS X with common alternative boot options such as Verbose Mode, Safe Mode, Single User Mode, and Without Caches, simply hit spacebar on the Clover Boot Screen. For testing, you can enter alternate flags at boot time as follows: 1. At Clover Boot...

www.tonymacx86.com

 

[Gigamaxx]

How do you install a “boot argument” when you’re trying to create a Catalina installation to begin with?

It’s in the config.plist of the installer. If you have a USB installer plugged in use Clover Configurator App to mount the EFI. Then add it to the Boot section.

 

[lotsacaffeine]

It’s in the config.plist of the installer. If you have a USB installer plugged in use Clover Configurator App to mount the EFI. Then add it to the Boot section.

Thanks for the help. I was having an old age moment... After I sent that message, it occurred to me exactly where it was and all that.

 

[hoeveler]

Hey I have almost the same setup as yourself. Same board with 6800k and R9 390. How were you able to get Catalina up and running. Do you have an example of your EFI folder.

Hi sorry it took me so long to see your response. I followed this guide (github here)by user @koush and haven't had to change anything, except for an adjustment to the code entry for the CPU version. I have a 6850K and he built with a 6950X. Also I started using AMD GPUs and haven't bothered with Nvidia GPUs since before Mojave.