With a bit of luck you might get one that clocks the same as the current one. Havent bothered with the modded bios on mine. It would only be for benchmarking anyway, and on the stock bios clocks, it has the second highest graphics score for a 670 in the 3d mark firestrike thread.

, i all ready had this overclock saved after 8hours of testing but that was at 1.32 had to up it abit to stop whea errors