Alan Mac Posted October 2, 2015 Share Posted October 2, 2015 I have a Asus Z87-k motherboard and the USB 3.0 only works with 2.0 devices. Dores anyone know how to solve it? Every 3.0 device, That i plug into a 3.0 door, isn't recognized. Link to comment https://www.insanelymac.com/forum/topic/308311-usb-30-with-problem-in-el-capitan/ Share on other sites More sharing options...
theconnactic Posted October 2, 2015 Share Posted October 2, 2015 I have a variant of this issue: in my case, all my USB3 ports (Asus Gryphon) are listed as USB2 ports/hubs. If I plug any USB3 device, such as my Samsung M3 portable HD, it will be recognised - but as USB2, with maximum speed of 480mb/s. Any solution for your USB3 might as well solve mine. All the best! Link to comment https://www.insanelymac.com/forum/topic/308311-usb-30-with-problem-in-el-capitan/#findComment-2172080 Share on other sites More sharing options...
Hannibal Posted October 2, 2015 Share Posted October 2, 2015 I have an Asus Z87-A with the exact same issue. Would really like a fix for this :/ Link to comment https://www.insanelymac.com/forum/topic/308311-usb-30-with-problem-in-el-capitan/#findComment-2172147 Share on other sites More sharing options...
Gogeta5026 Posted October 3, 2015 Share Posted October 3, 2015 Same problem as all you guys... Anybody figure out how to fix this? I was able to get 2 out of 4 USB3 working doing this:http://www.insanelymac.com/forum/topic/308325-guide-1011-full-speed-usb-series-89-keeping-vanilla-sle/?p=2172365If anybody knows how to get ALL 4 working... I would love to know and GREATLY appreciate it!!! Link to comment https://www.insanelymac.com/forum/topic/308311-usb-30-with-problem-in-el-capitan/#findComment-2172427 Share on other sites More sharing options...
S.V. Posted October 6, 2015 Share Posted October 6, 2015 I have a variant of this issue: in my case, all my USB3 ports (Asus Gryphon) are listed as USB2 ports/hubs. If I plug any USB3 device, such as my Samsung M3 portable HD, it will be recognised - but as USB2, with maximum speed of 480mb/s. Any solution for your USB3 might as well solve mine. All the best! The same happens to me: GA-Z97X-UD7 TH Link to comment https://www.insanelymac.com/forum/topic/308311-usb-30-with-problem-in-el-capitan/#findComment-2173898 Share on other sites More sharing options...
Gogeta5026 Posted October 6, 2015 Share Posted October 6, 2015 The same happens to me: GA-Z97X-UD7 TH I got everything working when I made this: http://www.insanelymac.com/forum/topic/308401-80-of-the-usb3-issues-solved-need-help/?p=2173219 Link to comment https://www.insanelymac.com/forum/topic/308311-usb-30-with-problem-in-el-capitan/#findComment-2173899 Share on other sites More sharing options...
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