Hello, I'm considering purchasing a Cryorig H7 air cooler for my new i7 7700K machine, and would like to know if this'd be sufficient for a mild overclock. I've never OC'd before, but I'm eager to try. Would it be enough to reach say, 4.5 GHz? The H7 looks like the best cooler in the sub-$50 range, which happens to be my budget. Any other cooler suggestions/recommendations from this price range are welcome as well.