USB 3.0 ports function as USB 2.0 ports on Windows 7 -- trying to fix via DeviceMgr & downloads from Intel website [duplicate]

My question is actually a follow-up to the question-and-answer poisted by a fellow at this superuser URL, USB 3.0 ports function as USB 2.0 ports on Windows 7 with an Intel USB 3.0 xHCI Controller

The specs for my computer are: HP Pavilion dv7-6b32us Laptop Core i7 2670QM 2.20GHz, 4GB DDR3, 640GB HDD ,Win 7 Prem.

As I understand it, in order to verify that my computer's designated 'USB 3.0' ports will actually interface with 'USB 3.0 flash-drives' at USB 3.0 speeds, it is necessary for iusb3hcs to appear when I select Device lower filters in the details of the "PCI bus" device, via Device Manager.

As this screenshot indicates, that does not seem to be the case for me:

"iusb3hcs" nor "Device Lower Filters" does not appear when I select "details" of the "PCI bus" device, via Device Manager

To that end, as suggested at the previous Superuser question-and-answer, I tried going to the Intel website via this link. (click to see)

There are 4 downloads being offered by the website, but how do I determine which of these 4 offered downloads is the appropriate one for me to download?

There are 4 downloads being offered by Intel at this URL, but how does one determine which of these 4 offered downloads is the appropriate one for them

Many thanks for any help that can be offered.


Sigh... well, a slight update on the situation, and this corresponds to the followup thread located here, too.

None of the ideas worked, despite spending HOURS trying to get the USB3.0 ports to actually operate at USB3.0 speeds.

I mention this as a warning to others that might be having a similar issue-- solving the problem could potentially eat up a LOT of time.

One of these days, I might attempt to fix the problem again. In the meantime, it's more pragmatic to just settle for USB2.0 speed.

All the same, my many thanks to the people that tried to help.

Also, the computer model I was trying to fix this on was a HP Pavilion dv7-4295us notebook (or something very similar).


From the screenshot, you have a sandy-bridge CPU, which usually pairs with 6-series chipset. And there is NO USB 3.0 support on the Intel 6-series chipset. Its possible to pair 7-series with this CPU but I highly doubt so.

So you need to find the proper USB 3.0 driver for the 3rd party controller used in the laptop. Go to manufacturer's website and carefully check the download section.