Downgrade USB 3.0 to USB 2.0

Hi,
I bought two Q190 PCs with Vista OEM (yes, I know ... but the OS was cheap). It is working well, but those USB 3.0 from the front are not working and I have a project where I need all six USBs. I don't need them to be 3.0. USB 2.0 is enought.
Seaching on internet I found the way in which can be done in BIOS: http://www.intel.com/support/chipsets/usb3/sb/CS-033072.htm
There is something like this under BIOS of Q190 ?
Thank you !

Plug in an USB 2.0 hub.
(109715)

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4Buck5 wrote:
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