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USB 3.0 slow on Asus X99 in Sierra

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Jun 8, 2017
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Motherboard
Asus x99-A USB 3.1
CPU
Intel i7-5820k
Graphics
EVGA GTX 970
Mac
  1. Mac Pro
Mobile Phone
  1. iOS
Hey everyone,

I just completed my build running 10.12.0 on an Asus X99-A 3.1 board with an Intel i7 5820k, EVGA GTX 970, and 32gb of RAM. I managed to get USB 3.0 recognizing drives and devices, but the read/write speeds are extremely slow, around 25 MB/s for both. It's jumped up to 33MB/s but it's not much faster than the USB 2.0 ports, which write at 18 MB/s and read at 28-36 MB/s. Anyone have any ideas what's going on?

I have Inject USB, Add ClockID, and FixOwnership, all checked in the Devices section of Clover Configurator. I also have the Inject USB 3.0 X99 kext, an entry in the Kernal section of Clover Configurator ( AppleUSBXHCIPCI - find 83bd74ff ffff10 - replace 83bd74ff ffff15 ). I also have some DSDT patches entered in the Acpi section of Clover Configurator, which are in the images below.

It would also be great to also get USB 3.1 working (which I would be fine with not have the 3.0 ports as fast if that was the case), but really any suggestions or alternate fixes would be much appreciated, thank you!



Screen Shot 2017-08-23 at 8.36.38 PM.png
Screen Shot 2017-08-23 at 8.36.53 PM.png
 
Hey everyone,

I just completed my build running 10.12.0 on an Asus X99-A 3.1 board with an Intel i7 5820k, EVGA GTX 970, and 32gb of RAM. I managed to get USB 3.0 recognizing drives and devices, but the read/write speeds are extremely slow, around 25 MB/s for both. It's jumped up to 33MB/s but it's not much faster than the USB 2.0 ports, which write at 18 MB/s and read at 28-36 MB/s. Anyone have any ideas what's going on?

I have Inject USB, Add ClockID, and FixOwnership, all checked in the Devices section of Clover Configurator. I also have the Inject USB 3.0 X99 kext, an entry in the Kernal section of Clover Configurator ( AppleUSBXHCIPCI - find 83bd74ff ffff10 - replace 83bd74ff ffff15 ). I also have some DSDT patches entered in the Acpi section of Clover Configurator, which are in the images below.

It would also be great to also get USB 3.1 working (which I would be fine with not have the 3.0 ports as fast if that was the case), but really any suggestions or alternate fixes would be much appreciated, thank you!



View attachment 274205 View attachment 274206

https://www.tonymacx86.com/threads/guide-10-11-usb-changes-and-solutions.173616/
 
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