Thank you so much for answering.
The motherboard model name is
This is Gigabyte B550M Aorus Pro.
Your mainboard is a reduced version.
I am using the same chipset, so I think it is more than 90% the same.
I have 4 USB2.0 ports, but all 4 ports are recognized as hubs on the PO14 channel...
I read your information so well.
It was very helpful. Thank you.
I have a problem now, but I can't solve it.
You say PTXH ports are automatically activated.
The usb2.0 port is not automatically activated for me.
It is estimated that the usb2.0 port is connected to the hub.
Then I'm sure I'm wrong.
What is the Novabench graphics score?
I am not exceeding 30fps
The OpenCL score is coming out with 2353 GFLOPS.
I don't know what the hell is wrong.
I am in the same situation. I am looking for a solution because the usb2.0 port does not work.
Now waiting for sesewolf's reply.
Do you other parts work fine?
I'm working on x8 graphics instead of x16. Did you know?
I am so glad to find a user who uses the same B550M AORUS PRO board.
Thank you so much for sharing the EFI file.
I booted with the EFI you shared,
4 USB2.0 ports are not recognized.
Are you well recognized?
Could you tell me how to do it to recognize 4 2.0 ports?