Installed USB 3 in iMac 2009 - but only getting USB 2 speeds

[qwerty0]

Hello,

I followed the instructions from "https://forums.macrumors.com/threads/adding-usb3-0-to-late-2009-imac-11-1.1979806/#post-26064070" which were limited but gave me a lot of hope. But, after doing it all I find myself with 2 more USB 2 ports. Basically the system identifies a USB 3 Superspeed Bus and a USB 3.0 High Speed Bus. But, when I connect drives to the new ports they only load on the USB 3.0 High Speed Bus.

I am using the moded AppleUSBXHCI. FWIW all the info listed under the 2 buses is identical in the system information windows. Same PCI dev ID, rev ID, vendor ID, and bus number.

Installed kexts and setting dev mode to 1 was all new stuff to me. I tried the Generic USBXHCI but same results.

Anyone have thoughts?

 

[chabig]

My thought is that your post in the aforementioned thread, where the discussion is taking place, should result in answers. There is no need for a new thread.

 

[jerwin]

Are you using the proper cables? Are they inserted all the way?

 

[qwerty0]

That's an interesting question - as far as I can tell yes. The drivers are mounting - just as USB 3 - Hi-Speed (not super speed).

I hope you're right - though given the age of the thread after the fact

Are you using the proper cables? Are they inserted all the way?