Using the main/gaming rig system in my signature, looking to overclock a little bit. Hoping for 3.7-4.0GHz. Does that seem attainable? I get 35 celcius max during Total War: Shogun 2 with atrocious thermal pasting (had to remove a few times, so lots of air bubbles). Any tips for me? Also, out of curiosity, what is really measured by the frequency?