How sensitive is Ninja 5 heatsink to airflow changes?

The original fans are quite slow, so it was especially fascinating to watch how the heatsink behaved with settings that are not intended for it – with a proper airflow through the ribs. Not only with both fans, but also with just one. Some results really surprised us. And the temperatures in the passive mode are very interesting too, one of the reasons why Ninja coolers have such a good reputation.

Passive mode


Note: Take the test in passive mode with a pinch of salt. Unlike in active cooling modes, the position of the outtake fans can change the results, different case means different layout.

Prints after the disassembly


Contents

Cooling Topics at HWCooling Techtour ‘26 Belonged to DeepCool

Do you know how a heatpipe works? A DeepCool representative, in a talk at HWCooling Techtour ‘26, looked under the hood. In other words, he explained much of what often remains hidden. This included how they approach development and what they work on internally. That, too, was part of the program, which you can watch. The physical samples, which were also on display, come only at the very end of the whole journey. Read more “Cooling Topics at HWCooling Techtour ‘26 Belonged to DeepCool” »

How a CPU Cooler Works. Intended for Secondary Schools

The purpose of a CPU cooler is to transfer enough heat away from the processor so that it can operate within its optimal parameters, for example clock speeds. These are only achieved within the expected range if the processor, in combination with the cooler being used, does not heat up more than is desirable for achieving attractive performance. Yes, everything usually revolves around speed, but that is also associated with factors such as power consumption. Read more “How a CPU Cooler Works. Intended for Secondary Schools” »

Computex 2026: New Hardware Outside the Main Spotlight

Computex is not just for the industry giants. Alongside major manufacturers, smaller brands regularly showcase unconventional designs and innovative engineering to capture attention. Some of these concepts prove to be developmental dead ends, while others pioneer features that later integrate into mainstream products. Even if not every innovation succeeds, many certainly deserve recognition. Read more “Computex 2026: New Hardware Outside the Main Spotlight” »

Comments (5) Add comment

  1. This test is hard to read. Why are some graphs empty? What is @24V? Is it 2x 12V or do you actually put 24V through the fans?

    1. Sorry for late reply. Passive cooling mean that heatsink haven’t a fan on its ribs but the system cooling is active.

Leave a Reply

Your email address will not be published. Required fields are marked *