NZXT Kraken X40 Review

In our noise level tests we switched off all the case fans and replaced the AMD Radeon HD 7950 graphics card with a HD 5550 passive model so were  just taking into account the noise generated by the cooler fans themselves.

We measured the noise level with a Digital Noise Level meter at a distance of 1 m from the front of the system.

None of the all-in-one coolers on test offer great acoustic performance.  Don't be fooled by the ‘Silent' mode of the NZXT coolers as they are far from silent, just less abrasive than the ‘Extreme' mode.

With the fans running at full speed, the X40 is unbearably loud, so the performance improvements gained by having a 500 RPM faster fan than the Corsair unit are negated.

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