CPU cooler fan Tags: CPUs Cooling Fan Product Last response: November 29, 2009 8:14 PM in CPUs Share Triton-00 November 29, 2009 3:12:48 PM so i got the thor's hammer by xigmatek heatsink. and now i need a 120mm case fan. what are some of your recommendations. i dont care much about noise just high end CFM and good berings if it matters. whats the difference between 120x120x25mm and 120x120x38mm will they both work? i'd rather get the x38 because they have higher CFMs most of the time. THX More about : cpu cooler fan sonic-boom November 29, 2009 8:14:45 PM The last number is how thick it is. The first one is 25mm thick and the 38 is a little thicker. The 38mm has more CFM because it has a longer blade surface since its thicker. http://www.newegg.com/Product/Product.aspx?Item=N82E168... m 0 l Can't find your answer ? Ask ! Publish Read discussions in other CPUs categories AMD Intel Intel i5 Intel i7 Phenom Cooling Performance !