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):
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
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.
is better for cooling a component?
Blowing cool air towards it, or drawing hot air
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
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…
for the Physics lesson, but
onto its cooling capabilities please!!