Ah yes my Dad has the UD5H and the BIOS it comes shipped with is bad, sorry I forgot to tell you about that. :/ Only just remembered. Yes, pleased the update worked, it worked for him too (though he had other issues because he doesn't have a GPU).
You need to download the graphics driver for your 670 from NVIDIA's website, then download the chipset, USB 3.0, SATA and audio drivers from Gigabyte's site. Don't download and install the graphics driver from Gigabyte's site, as that driver is for onboard graphics, not your 670.
You need to download the graphics driver for your 670 from NVIDIA's website, then download the chipset, USB 3.0, SATA and audio drivers from Gigabyte's site. Don't download and install the graphics driver from Gigabyte's site, as that driver is for onboard graphics, not your 670.