The procedure is as follows:
1 Leave baseclock for what it is right now
2 If optional, increase the TDP limit of your processor to 200~250 Watts
3 With a 3770K leave your base multiplier at 35
4 And now set the per core (Turbo) multiplier at a maximum of your liking, we applied an MP of 49 on all four cores
5 Increase CPU voltage, though setting AUTO might work fine, we applied 1.40V on this intel board.
6 Make sure your processor is properly cooled (we used a Noctua D12 heatpipe cooler and forced the fan to 60% RPM)
7 Save and Exit BIOS / UEFI