I also have a processor i7 2600K, but in the bios auto settings. And therefore I have a question for you: why do you think that your settings are correct? What is the advantage?
For i7 2600K (you need to get the correct settings for your CPU):
1-Core Ratio Limit = 38
2-Core Ratio Limit = 37
3-Core Ratio Limit = 36
4-Core Ratio Limit = 35
Internal PLL Overvoltage = Disabled
Thank you! Sorry for my English.