Resolved FIXED! 5,1 - Boot loop/kernel panic with Radeon Pro W5500

[rm5]

I just installed a Radeon Pro W5500 that I had in a PC, thinking it would work. So I booted the Mac Pro with the W5500, and it appeared to work, albeit with no graphics acceleration. So I installed the post-volume patches for OpenCore, and now it's in a boot loop. Any ideas why? Is this card somehow not supported?

 

[Macschrauber]

Quote: A Navi 10 or 14 GPU (Radeon RX 5000 and W5000 series) may be installed in a Mac Pro 4,1 or 5,1 if macOS 10.15.1 or later is installed using an unofficial method such as OpenCore

This is the thread what covers it in detail:

AMD Polaris, Vega, & Navi GPU macOS Support

This thread is about compatibility of Polaris, Vega, & Navi GPUs with the Mac Pro. This information is mostly reference for Mac Pro 4,1 (2009), 5,1 (2010, 2012), and 7,1 (2019). Mac Pro 6,1 (2013) users may also find this information useful since it is possible to connect an eGPU via the...

forums.macrumors.com

 

[Macschrauber]

If you let us know how it was fixed the thread makes sense.

 

[rm5]

@Macschrauber Sorry for not being specific, now I know for next time.

I nuked the OpenCore install (and the HD just to be safe, I know that's probably not necessary), then installed High Sierra (the last supported OS), and then installed Catalina. I'm not going to jump to Monterey quite yet... here are the specs as shown on About This Mac