Overclocking can be done a few different ways on the Z170N-Gaming 5. First if we open up EasyTune we can instantly overclock the system up to 4.40 GHz with one mouse click.
EasyTune also has an AutoTuning feature that will test different overclocks and give you the best one. After going through the procedure we made it up to 4.6 GHz.
Knowing we could beat this we went into the BIOS and adjusted the multiplier to 47 and set the voltage to 1.35v. With this we ended up with a stable overclock of 4.7 GHz.