CTurbo :
The B85 chipset is not an enthusiast chipset and does not have all of the features and control that the Z chipsets have.
I've heard of people going over this voltage with the same CPU. For example, in this post, some guy sets it to 1.247: https://www.techpowerup.com/forums/threads/help-overclock-i5-4670k-to-4-3ghz.200365/