Your motherboard uses a chipset (H81) that doesnt support the advanced overclocking. Some H81 motherboards, such as yours, allow some preset options. But sadly, advanced overclocking on a non-overclockable motherboard is hard, and a bit risky. Those boards aren't really designed to overclock. The voltage control units may not be as high quality as better boards. I used to have an Asrock motherboard with the H97 chipset, and that couldnt overclock either. it had presets, but i couldnt adjust voltages. If you want to get into the advanced overclocking stuff, look for a new motherboard with the Z97 chipset.
I use a MSI Z97 Krait Edition motherboard and the same CPU as well and I got up to 4.3 GHz. So, if you really want to overclock, look for Z97 motherboards...