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USB 2 ports are not working, only USB 3 works.


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Just installed Mojave on my AMD system.. A320M chipsets and Ryzen 5 2600. The 2 usb 2 ports does not work and only working with USB 3 ports. 

 

My PCI-E USB 3 does power the portable drives but not appearing. The USB WiFi works a bit then loses power. I would understand PCI-E not working well but any fix for USB 2.0 ports? I only have 4 USB 3 ports and it's not enough. Thanks!

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