POST INSTALL RX580 on MONTEREY (OpenCore)

[mixbyjm]

Hi. I have good install monterey with opencore (iGPU), It went smoothly.
The only problem is my Apple Music keep skipping music when in Lossless and I get blank when trying AppleTV

And I just remember I have RX580 Saphhire and want to Install in on my running monterey.

What's the step I have to follow? I dont want to reinstall everything

Please help and thanks in advance

GA-Z77-UD3R
i7
16GB RAM

 

[Edhawk]

You don't need to reinstall anything.

You just need to make sure you set the following:

1. The HD4600 IGPU with a Headless/Empty Framebuffer.
2. Change the SMBIOS to one that expects the system to contain a headless IGPU and a discrete GPU that is compatible with macOS Monterey.
   1. If you plan to update macOS to Ventura, I would recommend you use a SMBIOS from a system that only uses the discrete GPU (RX 580) and have the IGPU disabled in the bios.
   2. iMacPro1,1 or MacPro7,1 are the SMBIOS's you need to use for Ventura. Makes sense to only change the SMBIOS once, so think ahead.

Below is a link to a guide for a Haswell system build similar to yours.

[GUIDE] Haswell System - MacOS Monterey 12.0.1 OC 0.7.5

Haswell System running macOS Monterey 12.0.1 CPU: i5-4440 + HD4600 IGPU MB: GA-Z87MX-D3H Mem: 16GB (2 x 8GB) SSD: 1 x Samsung 840 EVO 120GB HDD: 3 x WD Green 2TB (JOBD) WIFI/BT: Broadcom BMC4360CD (Apple WIFI card on PCIe x1 adapter) PSU: EVGA 500Wr Case: Fractal Design R5 (Titanium Grey Solid)...

www.tonymacx86.com

This build started off just with the IGPU being used for Monterey with the Macmini8,1 SMBIOS. IT then transitioned to using a discrete GPU and the iMac17,1 SMBIOS, again for running Monterey.

Below is a installation guide for a Haswell Refresh system using an RX 580 running macOS Ventura.

GA-Z97X-UD5H-BK | i7-4770K | RX580 - Ventura Public Beta

Have just installed macOS Ventura Public Beta on a Haswell system, as listed in title. I initially installed macOS Catalina 10.15.7 so I could check the USB Port configuration with the help of the XhciPortLimit quirk. I then upgraded straight to Monterey 12.4 on the system, using the same EFI...

www.tonymacx86.com