Overclockers Club published a review on the MSI Z170A Gaming M7
A quote from the article:
Using the Game Boost option to overclock allows the enthusiast to use a dial an overclock feature in both hardware and software modes from the EZ Mode in the Click BIOS 5. There are options from 4.3GHz to 5GHz all by spinning the knob through seven different positions. We can officially say good bye to OC Genie and its limited scope, although it was solid and repeatable. If you would rather tweak in the OS to find your limits, MSI's Command Center lets you tweak away on the CPU with voltage, clock speed, and ratio adjustments. For the memory, you get a much more limited set of options, but you can tweak the timings and voltage for improved performance.MSI Z170A Gaming M7 Review @ OCC