The Card Cooler - Page 3

A Little Theory on Coolers…
Before we embark upon analyzing the worth of The Card Cooler’s performance, just some salient points to note for card coolers alike (including The Card Cooler):

Any cooling fan works only as good as the air in-take channeled for its circulation.

To illustrate what I mean, you can do the following experiment – Take a normal chassis fan and place it in open space. Then place one hand at the side of its air outtake and note the general airflow pressure blowing towards your hand. Then place your other hand on the opposite side of the fan, blocking its air-intake. You should immediately notice a significant drop in airflow at its out-take. Thus, whenever you build a cooling rig, don’t just concentrate on getting the most powerful fan. Because without proper ventilation, that fan may be as good as one half its power – with a shortage of air intake being its bottleneck.

Which is better for cooling a component? Blowing cool air towards it, or drawing hot air from it? 

I guess this is debatable, but perhaps we can first ask ourselves how far our component (to be cooled) is from the fan and if a channeled air-intake exists. Generally, if the component is distant from the fan and consists of a small surface area, it would probably be a better option to blow air towards it rather than draw air from it. Why? Well, the reason lies in airflow dynamics based on the 2 earlier questions.

Ever wondered whether your airflow is optimal?

From the above illustration, it is obvious that the airflow out-take is typically more focused and concentrated (fans are directing and driving air out), in comparison to its in-take, where the lack of a properly channeled inflow results in air being sucked in over a wider area. Thus, taking the scenario of cooling a graphics chip situated relatively distant from the fan. It would be more efficient to direct a strong, stream of air towards it (higher airflow rate there) and cool it directly, as opposed to slowly withdrawing hot air from around it, where unwanted residual air would inevitably be drawn in from the sides. However, if channeled in-stream airflow does exist, then this would be a contentious argument. 

With that in mind, let’s proceed to test its cooling competence…

Thanks for the Physics lesson, but
onto its cooling capabilities please!!

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