The AK620 WH features a precision-machined convex copper base and six copper heat pipes that deliver improved heat transfer capabilities.

The first sample of this unit I tested had issues with high-pitched vibrations which effectively made it impossible to test at noise-normalized levels because of the increased noise caused by them. Ocuk Limited trading as Overclockers UK is a credit broker, not a lender, and is Authorised and Regulated by the Financial Conduct Authority. With CPUs rated at more than 100W of heat output, single graphics boards carrying similar ratings (and people want to run two!

Codenamed Conroe and officially titled Intel Core 2 Duo, it’s loosely based on the current mobile Yonah (Core Duo) underpinnings. The AK620 features six nickel-plated copper heatpipes which extend from the cooler base up into both towers of the twin fin stack configuration. The AK620 is capped on each cooling tower with a pair of decorative cap plates featuring a simplified DeepCool logo nestled in each corner, on a pixel-like backdrop. And since it has 2 fans a more valid comparison would have been to the full Noctua D-15 with 2 fans rather than the 15S single fan model.

Note there are many factors other than the CPU cooler that can influence your cooling performance, including the case you use and the fans installed in it. With the cooler secured, the pair of FK120 PWM fans can be clipped into position and adjusted as needed for memory clearance. The same high-quality materials with six advanced copper heat pipes, a pure copper baseplate, a dense dual-tower heatsink and two silent FDB fans result in a powerful winning formula for high-performance cooling in the ZERO DARK raven design. It seems that 155mm is often the limit, though, and most of the top air coolers seem to be >= 155mm.The AK620 ZERO DARK features a precision-machined convex copper base and six copper heat pipes that deliver improved heat transfer capabilities.

The six, nickel plated pipes of the AK620 cooler collect between the fixed mounting plate and the cooler cold plate. That mission revolves around grouping and standardising key technologies under various banners that are designed to ensure hardware compatibility and consumer ease of use. The AK620 is a powerful twin-tower cooler that enables very efficient and quiet cooling thanks to the two fans. The AK620 DIGITAL offers maximum heat dissipation and improved airflow to reduce temperatures in demanding system applications. As with other AK series CPU coolers, the AK620 Digital’s dual towers feature a checkerboard matrix design, which not only gives the device a distinctivelook but also improves total static pressure for enhanced cooling performance.With its innovative design and high-quality construction, the DeepCool AK620 Zero Dark CPU Air Cooler is compatible with a wide range of CPU types, making it a versatile choice for any PC build. The results didn’t change much at all with the longer test: The average clock speeds maintained dropped by 29 MHz on DeepCool’s LT720 and 31 MHz on Thermalright’s Assassin X 120 R SE.