How to Fix Catalina on Biostar TH55HD Socket 1156 with Sapphire Pulse RX580 - CLOVER & OC

How to Fix Catalina on Biostar TH55HD Socket 1156 with Sapphire Pulse RX580 - CLOVER & OC

This mini-guide provides a structural approach to troubleshoot and fix the issue.

Prerequisites

• Confirm your hardware specifications (CPU, GPU, Motherboard).
• Ensure you have a bootable recovery USB and backup your EFI.

Fix Steps

1. Check if your GPU requires WhateverGreen or specific boot-args (e.g., agdpmod=pikera).
2. Ensure Metal acceleration is fully supported for your macOS version.
3. Update Lilu and WhateverGreen to the latest versions.

Verification

• Reboot and verify if the functionality is restored and stable under typical usage.

Original Question:

EDIT: I applied the 10.15.7 supplemental update (19H15) as noted here. I needed to switch to OC to apply the update.

EDIT: I upgraded from 10.15.6 to 10.15.7 as noted [COLOR=rgb(41, 105...

[URL='https://www.tonymacx86.com/threads/catalina-on-biostar-th55hd-socket-1156-with-sapphire-pulse-rx580-clover-oc.290495/']Read more[/URL]

Author: deeveedee