GA 78-LMT USB 3.0 is not working?

Kaneda Beats · Jun 18, 2014

The back USB 3.0 ports aren't working on my mother board. Device manager has a yellow question mark against 'Universal Serial Bus (USB) controller. I have visited the gigabyte website and downloaded the correct drivers for USB3.0. They installed but nothing changed. I tried updating driver software in device manager and pointed it at the driver folder. That didn't work. I have 3rd party driver software and that says all my current drivers are up to date.

Any suggestions?

clutchc · Jun 18, 2014

Is it possible you are using the wrong drivers? Did the driver installation pgm complete as it should? It should have required a re-boot and asked for it.

Kaneda Beats · Jun 18, 2014

They are the correct drivers. The installation completed but didn't ask for a re-boot. I have just read a separate thread where someone had similar problems. They managed to fix it using the same drivers but apparently you have to use the ones that came with the MB installation disk. Unfortunately I didn't receive the disk when I bought it

Calvin7 · Jun 18, 2014

There is more than one revision of the motherboard. The USB 3.0 is different on each revision and not interchangeable.

GA-78LMT-USB3 (rev. 4.1) has a blue color PCB (Printed Circuit Board).
GA-78LMT-USB3 (rev. 5) has a black color PCB.

Kaneda Beats · Jun 18, 2014

Mine is blue 4.1 which I have tried installing

clutchc · Jun 18, 2014

If the driver installation pgm did not ask for a re-boot, chances are the driver failed to install.
Why no MB driver disk, used board? Pre-built system?

You might try this; Run Driver Sweeper from safe mode. http://www.techspot.com/downloads/4266-driver-sweeper.html
Have it try to find any USB 3.0 driver that it can, and then have it remove those files. Re-boot and try to install the correct driver for your USB3.0 controller and OS again.

Kaneda Beats · Jun 18, 2014

clutchc :

Yes I bought a pre built case, mobo + cpu, combi. The front case has 2 usb slots which where plugged into the usb 3.0 header on the mobo and they work fine. It's just the back 2 ones that don't work. I've managed fine without them thus far but would like to see them working. I will give run drive sweeper ago and see what happens

clutchc · Jun 19, 2014

If the specs are correct, that motherboard has 2 x Etron EJ168 chips, one for each pair of USB3.0 ports. My guess is one for the 19 pin header and the other for the rear ports. http://www.gigabyte.com/products/product-page.aspx?pid=4305#sp

Assuming you have Win7 x 64, if this is the driver you installed: Etron USB 3.0 Driver 1.0.0.118, it should be the latest for that MB (2014/01/09). If doing the DS thing followed by CCleaner, followed by a fresh install of that driver doesn't do the job, I would have to assume one of the Etron chips is bad.

RickPowl · Oct 25, 2014

You need the VIA USB 3 Root Hub. This driver is on the installation disk in the Chipset folder as VIAUSB3. If you don't have the disk, this driver might be included in the Chipset download. When you run the setup program in that folder, the program says you are running "VIA XHCI Host Controller Software Setup Wizzard. This is for the VIA XHCI Host Controller Driver V 2.10C. If you don't have the disk, see if Gigabyte customer support will point you to a server where you can download it. If you install it, it will fix the problem.
During the installation process, it also installs a program that it seems to make changes to your registry. I let it do it's thing, and my USB 3 problems were solved.

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GA 78-LMT USB 3.0 is not working?

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