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USB 3.0 not working on Dell E6330, OS X 10.10.5


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I have a nearly perfect, vanilla HackBook Pro thanks mainly to this site and this guide ...




However, one serious hurdle remains. This laptop will not recognize USB 3.0 drives reliably. It never sees them when first attached but sometimes after I sleep the unit and rewake it, they will then pop up along with a "not properly unmounted" message.


I ended up using the GenericUSBXHCI.kext along with FakePCIID + USBMux kexts to get this far but I think that even the developer of these kexts believes that they are not appropriate for this native Intel USB3 chip as the stock AppleXHCI will load if I remove the Generics. However, then the system freezes permanently when a USB 3.0 device is attached.


I should mention that USB 2. devices work just fine.


This is all running Yosemite 10.10.5 on a Dell Latitude E6330 with BIOS A11.  Heavy artefacts result with BIOS A12 and above on this one.


Anybody out there have one of these on 10.10.5 with solid USB 3.0 ?


Thanks in advance,




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