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Sierra X79 Ext USB HDD shows up as Internal HDD?!


moonelf
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Hello,

 

Followed instructions from here although my build is slightly different

 

http://www.insanelymac.com/forum/topic/315489-gigabyte-x79-up4-macos-sierra-success/

 

Most things seem to work but I am having a couple of issues

- USB 3 devices are detected as USB 2 under System Report

- External USB 3 Hard Drives appear as Internal Hard Drives in System Report and Desktop Icons

 

Everything else seems to work. I hope someone can advise me on how to fix these issues. It seems that USB related problems is very common for Sierra and El Capitan with X79 systems.

 

I found and tried recommendations to apply a "Increase Max Port Limit" fix. This did not fix the problems and seemed to make USB 3 more flakey. I have now reverted to the previous state before applying this "fix".

 

Any help getting this sorted would be much appreciated!

 

Gigabyte GA X79 UD5

I7 3930K 6 Core

Gigabyte GTX 770  (patched with AGDPFix)

Corsair Vengeance DDR3 32GB

Samsung 840 Evo SSD 750GB

MacOS Sierra 10.10.3

 

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