I have exactly the same mobo, with the aerial connected, but the Bluetooth still not working.
Actually I can see it on the USB Device Tree :
But the Bluetooth toolbar doesn't use it :
I think I've broken it when I've tried to fix the Bluetooth issue without the aerial connected.
I have exactly the same setup with High Sierra 10.13.1, it works great.
Here is my Multibeast 10.1.1 setup :
I don't know what is Quick Sync sorry.
WiFi on board is not working but it's normal. My front microphone input doesn't work, but the rear yes.
My real problem is the bluetooth...
Mmh... Well... I fixed this problem in a very strange way:
I spent vacuuming on my keyboard when :beachball: was just constantly spinning, and I accidentally used the Mission Control shortcut :
(It's a PC keyboard)
and my desktop appeared !
I've installed the new Nvidia Driver, and everything...
After update 10.4 to 10.5, I'm stuck at the login screen, exactly the same problem as here :
So, I can't install the new Nvidia Driver or the multibeast corrections...
Everything was ok on my...