Just what I was going to suggest. Maybe you can find a true USB-2 card somewhere else.
You can try building a kernel with the attached (untested) patch. It is a partial fix for a bug in the xHCI driver, and it might solve your problem on the USB-3 ports.
Just what I was going to suggest. Maybe you can find a true USB-2 card somewhere else.
You can try building a kernel with the attached (untested) patch. It is a partial fix for a bug in the xHCI driver, and it might solve your problem on the USB-3 ports.