Seriously? The first four links are:
Intels doco on turbo boost,
Intel forum on turbo boost not enabled,
Intel pdf manual on turbo boost,
And a you tube video on how to enable turbo boost.
I can't read your mother board manual for you not can anyone else. You provided ZERO system info. I GUARANTEE it should be on by default. If it's the Dell in your sig I know it is and you don't understand turbo boost and didn't read ANY of the info.