I've tried that. Not to be rude, but don't post unless you know the answer. I've been asking people all over the place and even EMailed ASUS, but I haven't recieved a yes or no answer.
The ASUS website says the BIOS upgrade is to make the mobo support 2600+. But if it requires 1.6V and my bios doesn't have that option, sounds like it won't work. Perhaps it will bring up the option when I install it, but I'm not going to spend almost $200CND just to test that option.