Last week I reported on some news that three Gigabyte motherboards, X79-UD3, X79-UD5 and G1.Assassin 2 had issues with build quality and a bad BIOS. I've received official word from Gigabyte that it was not a board-related, or build-related problem, but a BIOS-related issue.
I used a specific quote "Gigabyte has said the issue stems from a combination of poor quality PWM components and bad firmware." I should've fact checked before posting, and done some background work before making a statement like that and trusting a single source. For this, I apologise on behalf of TweakTown.
The problems does not stem from the board, but from a BIOS issue and Gigabyte have released a new bios: F7, which fixes the issue. If you have one of the boards and would like to update its BIOS, visit this page.