While I am not sure if you can up the turboboost without a K series processor, the Z series chipset is the one you will want to look at purchasing, it would have the overclocking tools for changing the TB multiplier.
However, Intel has tried to remove most of the overclocking work-arounds in the non K series CPus, because those "are targeted at business and mainstream consumer users who shouldn't be fiddling around with multipliers in the first place".