Asus Maximus V Gene Z77 Motherboard
 

If you are interested in upgrading to a Z77 motherboard, there is a review of the Asus Maximus V Gene at eTeknix that might be of interest to you. After pushing forward to 4.6GHz for our testing, we then decided to throw the board in at the deep end and go for 5GHz and things booted fine with a relatively low voltage at 1.425V. It's only after this that we had to chuck a few extra volts at it to push it further and starting to up the multiplier to 51x and then 52x.

http://www.hardocp.com/news/2012/04/...7_motherboard/