davidkerr1482 Posted October 16, 2016 Share Posted October 16, 2016 Hello,Got my Sierra build running nicely and the last thing that I need to fix is my USB3.0 speed.MY USB 3.0 bus is showing in my system profile but the fastest speed showing is 480Mb/s and not 5Gb/s. I am using a Gigabyte z97 ud3h bk motherboard and running an iMac 14,2 profile.Hopefully someone can show me the steps in getting my USB working properly in Sierra.All the guides I have seen seem to be for El Capitan.I normally dig through the forums to find what I need but this time around I am really paranoid in wasting an otherwise perfectly working Sierra install as it took me a bit of time to get everything working, more so than previous Mavericks/Yosemite/El Capitan installs.I would really appreciate some help! Thanks in advance! Link to comment https://www.insanelymac.com/forum/topic/316894-sierra-usb-30-only-showing-usb20-speed/ Share on other sites More sharing options...
artur_pt Posted October 16, 2016 Share Posted October 16, 2016 hello use the solution for el capo .. same thing good hack Link to comment https://www.insanelymac.com/forum/topic/316894-sierra-usb-30-only-showing-usb20-speed/#findComment-2301088 Share on other sites More sharing options...
davidkerr1482 Posted October 16, 2016 Author Share Posted October 16, 2016 Many thanks, could you point me in the right direction to the el cap solution? Link to comment https://www.insanelymac.com/forum/topic/316894-sierra-usb-30-only-showing-usb20-speed/#findComment-2301094 Share on other sites More sharing options...
vusun123 Posted October 17, 2016 Share Posted October 17, 2016 Assuming you are using the AppleUSBXHCIPCI.kext port extending hex patch, you need to exclude all unused ports in your PC, then remove that patch Link to comment https://www.insanelymac.com/forum/topic/316894-sierra-usb-30-only-showing-usb20-speed/#findComment-2301205 Share on other sites More sharing options...
espacioami Posted October 18, 2016 Share Posted October 18, 2016 Please, a cap link solution? in my case also happens to me (iMac 14,2 GA-Z97n Wifi) with my DSDT. Without it USB 3 goes full speed. thanks in advanced Link to comment https://www.insanelymac.com/forum/topic/316894-sierra-usb-30-only-showing-usb20-speed/#findComment-2302081 Share on other sites More sharing options...
uzmi Posted October 18, 2016 Share Posted October 18, 2016 In GA H87M D3H -->Sierra AppleUSBXHCIPCI Find 83BD74FF FFFF10 Replace 83BD74FF FFFF16 Link to comment https://www.insanelymac.com/forum/topic/316894-sierra-usb-30-only-showing-usb20-speed/#findComment-2302212 Share on other sites More sharing options...
UltraLaser Posted October 18, 2016 Share Posted October 18, 2016 Interesting, same chipset (z97) same problem Inviato dal mio iPhone utilizzando Tapatalk Pro Link to comment https://www.insanelymac.com/forum/topic/316894-sierra-usb-30-only-showing-usb20-speed/#findComment-2302219 Share on other sites More sharing options...
vusun123 Posted October 19, 2016 Share Posted October 19, 2016 As I have said, extending USB ports is a short-term solution, as you all have USB bandwidth problem here. Try to filter out all unused ports, create a custom SSDT/custom bootflag to use with USBInjectAll.kext then it will work as it should Link to comment https://www.insanelymac.com/forum/topic/316894-sierra-usb-30-only-showing-usb20-speed/#findComment-2302263 Share on other sites More sharing options...
Picasso Posted November 20, 2016 Share Posted November 20, 2016 Can you post the link that explain how to create SSDT for USB ports? Thank you. Link to comment https://www.insanelymac.com/forum/topic/316894-sierra-usb-30-only-showing-usb20-speed/#findComment-2322132 Share on other sites More sharing options...
DeJoTaDeEmE Posted November 20, 2016 Share Posted November 20, 2016 Hello put these files in their place, and configure your smbios to 14.2 DSDT Y SSDT.zip 10.12.zip Link to comment https://www.insanelymac.com/forum/topic/316894-sierra-usb-30-only-showing-usb20-speed/#findComment-2322201 Share on other sites More sharing options...
vusun123 Posted November 21, 2016 Share Posted November 21, 2016 Hello put these files in their place, and configure your smbios to 14.2 That's for your rig, not OP's. It should be manually configured Link to comment https://www.insanelymac.com/forum/topic/316894-sierra-usb-30-only-showing-usb20-speed/#findComment-2322438 Share on other sites More sharing options...
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