Today we are taking a look at a couple of Arctic Cooling’s Liquid Freezer II all-in-one CPU coolers: the Liquid Freezer II 240, and the Liquid Freezer II 420. Based on the same core design, the coolers are two of several models that Arctic Cooling offers across the spectrum, from a single 120mm fan up to the massive, triple 140mm fan 420 model. Of course, were going to be diving into the behemoth 420 AIO cooler, but were also taking a look at the much more sensible 240mm version of the cooler. How well does such a large cooler perform with regards to thermals and noise? And just how much better does that make the super-sized cooler over the more normal, widely compatible version of the same cooler? Lets find out.