Hi
If you can wait, I will suggest that you do. Improvement have obviously been made with the new bios, but too many people are still having problem with that chipset.
Let's see what Nvidia will decide to do: either really find a software way to fix the issue, or, if they cannot solve it, do a recall of all the 'defective' mainboards to prove that they are capable to face their responsabilities.
Regards
Philippe