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This heat sink is great for medium overclocks and silent builds with a Core i7 processor. I would not recommend it for extreme overclocking. With only four heatpipes, it does not keep the chip cool enough when using high voltages (over 1.35V). However, it does perform excellently when running stock voltages, or slight increases.
When running at full speed, the two 120mm fans are quiet, spinning at around 1350 RPM. This is barely audible inside a case, yet it still moves a lot of air. I've always been impressed with Noctua's fans. Once you use the included LNA (Low Noise Adapter), the fans are inaudible inside a case. I did not try the included ULNA (Ultra Low Noise Adapter), as the fans were already silent when using the LNA. With the LNA, cooling was sufficient for stock voltages, or mild overclocks.
I would highly recommend this heat sink to those looking to build a silent Core i7 system.
I would not recommend this for extreme overclocking. I'm a little disappointed that Noctua did not pair their excellent fans with a better heat sink. There are comparably priced i7 heat sinks with better cooling performance.
When running at full speed, the two 120mm fans are quiet, spinning at around 1350 RPM. This is barely audible inside a case, yet it still moves a lot of air. I've always been impressed with Noctua's fans. Once you use the included LNA (Low Noise Adapter), the fans are inaudible inside a case. I did not try the included ULNA (Ultra Low Noise Adapter), as the fans were already silent when using the LNA. With the LNA, cooling was sufficient for stock voltages, or mild overclocks.
I would highly recommend this heat sink to those looking to build a silent Core i7 system.
I would not recommend this for extreme overclocking. I'm a little disappointed that Noctua did not pair their excellent fans with a better heat sink. There are comparably priced i7 heat sinks with better cooling performance.

