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This shot showcases the Noctua NH-C14 heatsink and its six heatpipes with dual 140mm fans, which are very quiet in operation. The system includes two sets of cables that slow the fans' spin speed from 1,200rpm to 900rpm or 700rpm. This promotes quietness, and a 140mm fan shifts a lot of air — 110.3 m3/hr at 1,200rpm, 83.7 m3/hr at 900rpm and 71.2 m3/hr at the slowest 700rpm setting. We used the 900rpm setting and the CPU temperature hardly shifted from 33 degrees C. Despite the overhang of the fans, we managed to install memory modules with the heatsink installed, although you could probably take the lower fan off to make DIMM installation a bit easier, as well providing greater noise reduction while retaining plenty of thermal headroom.