How to Fix Thunderbolt UAD Apollo Twin MK2 with AMD Ryzen showed up in System info>PCI, then disappeared
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
- Check if your GPU requires WhateverGreen or specific boot-args (e.g., agdpmod=pikera).
- Ensure Metal acceleration is fully supported for your macOS version.
- Update Lilu and WhateverGreen to the latest versions.
Verification
- Reboot and verify if the functionality is restored and stable under typical usage.
Original Question:
I use Mojave 10.14.6 with OC 0.5.7
The MSI b450 Pro Carbon AC motherboard doesn't have THB_C. So I got a Titan Ridge 2.0
The pins 3&5 are shorted from the end of the connector. I used “ GC-TITAN-RIDGE-NVM23-Elias64Fr.bin
I used SSDT-DPGT and modified a Gigabyte B550 SSDT and compiled through from HackinDROM. The only changes I made were PT 20->PT24 and GPP1->GPP2 in the SSDT then compiled and enabled in config.plist. As well as the custom TB kext.
After a reboot, some USB devices were off so I force shut down. After booting Thunderbolt appeared in the PCI section of system profiler and Apollo. it showed up in PCI and worked.
After I shut down the system and restarted the Apollo disappeared from PCI section.
Since the I tried warm reboot, boot with Apollo already on. I do have the Thunderbolt showing up in system profiler regardless if the UAD Apollo is detected or not.
Then I did a hardware reset and it works with another MacBook.
When I installed UAD software I updated firmware to latest. Would that be the cause of the interface suddenly not showing up in PCI?
DESIGNARE-Z390-NVM33-Elias64Fr.bin, same booting process and Apollo not showing up. Still only Thunderbolt in PCI.
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