<< Solved >> ASRock Z390 Extreme 4, Mojave and USB 3.0 ports problem

CmdrX3 said:

Yes, if you know you are only going to use a USB3 device in that port you can disable the HS06, however be aware that by doing so, it will not recognise a USB2 device if you plug it into that port, only USB3 devices.

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Just installed the AML file, all ports works perfectly a very high speed.The Hub on my BENQ PD3200U monitor works fine and also the SD card reader bundled with the monitor word fine (speed is not very high but I think that this is an sd card reader limit; using my lexar pro reader the speed is about150% or double respect to the monitor one. Using lexar 1066 CF card on the lexar card reader I get a transfer rate of about 135MB/s reading and 110 MB/s writing. Connecting a Samsung 860 EVO ssd to an USB port using a UGreen Sata III to USB 3.0 adapter I can get a speed of about 380 MB/s during writing and 420MB/s reading. I'm so happy!
I just want to thanks all you guys again!

I just used your AML file and all ports works perfectly. The Hub and the SD card reader on my BENQ PD3200U monitor are correctly recognised. Speed of the card reader is not so high but this is a limit of the reader.
usually I keep connected a TS451-A QNap NAS via USB 3.0 port (speed is about 110 MB/s both reading and writing but I think this is an HD limit and not a QNap one)
A Lexar pro CF&SD USB 3.0 card reader (135 MB/s reading and 115MB/s writing using 1066x lear pro CF and 90MB/s both reading and writing Lexar 1066 pro SD)
A usb 3.0 Termaltake DAS(96 MB/S both reading and writing)
An externa UGreen Sata III to USB 3.0 adapter (380MB/s writing and 420 MB/s writing using a Samsung 860EVO SSD (1TB)
Plus pendrive, card reader for digital signature and some other things
I just want to say thanks all you guys!!!
Antonio

Hi Zottwalker; can you please share your EFI directory; I have exactly the same board and processor; it would be highly appreciated as I have some issues with mine. I even have the same graphic card with it. Thanks in advance, Bart

bartrap said:

Hi Zottwalker; can you please share your EFI directory; I have exactly the same board and processor; it would be highly appreciated as I have some issues with mine. I even have the same graphic card with it. Thanks in advance, Bart

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Morning Bart and sorry for late answer.
I'm uploading in attach my efi directory!
Little note: now I'm using Catalina

Thank you Zottwalker! Antonio