I'm trying to update the BIOS on my X79 UD3 so it works with Ivy Bridge E CPUs, however Gigabyte appears to have disabled/neglected the most straightforward ways: There is no Windows utility to update the BIOS (the link for @BIOS for X79 motherboards simply goes nowhere despite still existing on the website), and QFlash reports that it is too old so has gone into retirement.
What is the recommended method for updating the BIOS to F20 for this motherboard please?