I've had this board and processor for well over a year now. I set it back to stock clocks a while to diagnose another problem. The processor is an i7-2600k and the board is a z68xp-ud4 runing bios u1g. In bios, I cannot any clocking or voltage related settings, with the exception of enable/disable turbo boost and XMP profile. The board says it has a 2600k in it, which it does. I had no OC related utilities installed past monitoring ones, (HWinfo 64 and CPU-Z.) I installed Intel XTU after I noticed this issue. XTU has me locked out of making changes despite it also saying it's a 2600k. Kind of at a loss here.