HBP Posted September 30, 2018 Share Posted September 30, 2018 Ok, so the story goes, I upgraded from a z77x board to a Z270 which has USB 2.0, 3.0 and 3.1. When I use a usb 3.1 to usb adaptor cable and plug into the the usb 3.0/3.1 port I get usb 3.1 speeds. When I plug it into the usb 3.1 port (the new mini interface) I only get 480 Mb/sec. What am I doing wrong? Send me 1 is the usb converter cable, Send me 2 is the USB 3.1 cable. I am trying to identify what is changing when I use the conversion cable too connect I get 5g/s speed vs 480m/s. so how does the cable make the connection different? trying to understand. HBP Send me 1.zip Send me 2.zip Link to comment Share on other sites More sharing options...
STLVNUB Posted September 30, 2018 Share Posted September 30, 2018 Sounds like ports aren't configured properly I had to make a SSdt with my ports (10 2.0/8 3.0) to get them to work at 2.0/3.0 speeds. I don't use a port limit patch, but have USBInjectall.kext and XHCI-300-series-injector.kext COFFEELAKE-USB-SSDT.aml Link to comment Share on other sites More sharing options...
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