I assume that the switch diagrams on page 24 of the manual show the actual movable part of the switch in black. I have just looked at over clocking my i73770K and CPU Z shows the CPU speed as 1601.35 MHz and the multiplier as x16.0 (16-39) I found one other person who had this and said the his L2 switch was switched to Low speed (Did not say his motherboard). My L2 switch is to the right as you look down on the board (It can go left or right) which, if the movable part of the switch is black this is the normal position. Bios revision is F4
Turbo is set to enabled with the four cores at 39, 39, 37, 37 respectively.
Any help would be appreciated.