It would probably be cheaper just to buy a new MB than an another CPU.
So let that be a warning to people out there if you get an Ivy bridge-E socket 2011 CPU then avoid the GA-x79-ud3 MB like the plague!
Why there is nothing wrong with the these board. The people that sell these board should put up a warning.
That if you buy the board it might not support the newer CPU. Plus the people buying the boards should make sure that the board supports the CPU too.
Most of the people selling computer parts. They don't care who is buying them and why. They are just there too make money.
Plus when you bought it the people selling it most likely had listed too support the new Cpu. Yes this board will support the CPU with the right bios.
I have been doing this from the early 80's. Every time you buy computers parts you always cross you fingers hope that everything works.