Hi, I need help finding a good cooling solution for a 4690k. I plan to OC it to 4.2Ghz-4.5Ghz. I am between the H75, H80i and Noctua NH-U14S. The NH-D14 and D15 are too big imo and will make my case(450D) look bad and also affect the airflow in a bad way so I'm leaning towards liquid cooling solutions. Does anyone have the H75 or H80i or have a friend who has it and know if I can reach the above frequencies or similar to them? I prefer proven stuff offer assumptions. Like someone has it and knows or info from websites and stuff. Thanks guys.