Need help troubleshooting USB on B450M Steel Legend

Need help troubleshooting USB on B450M Steel Legend

Hardware Used

Processor: AMD Ryzen 5 2600Mainboard: AsRock B450M Steel LegendMemory: Corsair Vengeance (2x8GB) DDR4-2666Storage: Kingston A2000 (500GB) M.2 NVMe (OSX)Graphics Card: Sapphire Radeon R9 370 4GB

I attached a few screenshots to explain what I am struggling with

AsRock B450M Steel Legend Rear I/O

Screenshot of USB Buses that shows up

IOReg Screenshot

In conclusion, all of the USB does show up and detected correctly, however only 4 of the USB works from XHC0.

I tried following OpenCore AMD Mapping Guide, they mentioned using AMD-USB-Map.kext to manually map USB, I've taken a look into my DSDT but there's no renaming I need to do and USB are correctly detected. But one thing that is suspicious is that in my DSDT, there's extra HS03 and SS03 which I have no idea which port it maps to.

I can confirm that the other USB Ports does work, as I have tested them in a Ubuntu Live USB.

I am stuck here, not sure what's the next step to fix this issue.

Here's my EFI Folder and Dumped DSDT:

submitted by /u/geminimarcus
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