I'm going to run a freaking Benchmark for an entire year then I'll make
another video a year from now explaining what the results were of said Benchmark
why well because we love multi-part videos and making you wait for their
conclus no no no seriously this time there is a good reason we've been saying
for a long time that balanced air flow leaning on the side of positive internal
pressure is better than very positive or any form of negative but we've never
done a formal long-term investigation and to our knowledge NE has anyone else
so let's fix
that Verde Gear's ergonomic s and plus
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the link below okay first we need to actually
establish what the different types of internal air pressure are first you've
got negative air pressure this is when the majority of the fan power in your
case is focused on sucking air out of said case like if you had a rear fan a
top-mounted AO cooler blowing air up and a single front intake then you've got
positive air pressure this is where the majority of your fan power is focused on
pulling air into the case if you flipped around the fans on your radiator from
the previous example it would become positive and finally we've got the
mystical balanced or neutral air flow where your air flow in and out of the
case equal each other the conventional wisdom goes like so a negative pressure
setup will end up pulling air into the case through small gaps in the chassis
that are just unavoidable unless case manufacturers use some type of seal
everywhere that two different parts of the case met like your side panels to
the case for instance this would completely destroy the usability of the
case because of air flowing through these inevitable gaps dust is also
sucked in in and accumulates throughout your rig potentially reducing cooling
performance or even causing component failure if left long enough easy
solution right with a positive air pressure setup you'll be pushing air out
of those cracks instead but if you overdo your uh positivity it's going to
be really turbulent inside of the case you might end up creating pockets of hot
air that actually harm your cooling efficiency and besides no cases that I'm
aware of are designed to have an intake on every single fan Mount so perhaps the
more balanced approach is the answer now we here at the office have always rooted
for balanced air flow leaning slightly on the positive side of things because
theoretically and from our anecdotal experience we found that it's a good
balance between cooling performance overall dust reduction and actually
being able to control the delivery of cool air to the zones in your PC that
need it the most like just under your graphics card and through your CPU
Cooler but anecdotal evidence has never been enough for us here or at least it
shouldn't be so the test today is to build three identical computers one each
to represent negative pressure very positive pressure and mostly neutral but
leaning on the side of positive since practically speaking it's impossible to
make a perfectly neutral airflow setup okay so I've gathered three sets of the
same Hardware this is mostly mostly some
old stuff that we can actually do without for about a year I've got three
fractal design r5s and we're going to put it all in these different cases
shove it somewhere in the warehouse and then be good to go so let's build so now
that that's all done we were left with Audi the case that I built and I had
Tyler replicate twice for innie and in betweeny innie has all of the fans
blowing in the two in the front blowing this way the two in the top blowing down
and the one in the back blowing in as well now the two in the top blowing down
and the two in the front blowing in are actually very realistic the one in the
back blowing in is a little bit less realistic but we just wanted to go
hardcore with the theme Audi has all of the fans blowing out so the two in the
front are blowing out the two in the top are blowing out and the one in the back
is blowing out and then in betweeny is a little bit different we have the two in
the front blowing in and two in the bottom blowing in and then one in the
top blowing out and one in the back blowing out the reason why we did this
was because the two in the front have to fight with this front panel which is
actually a lot of restriction and can only bring in air through the side and
then it has to go through a filter a lot of restriction the bottom has to fight
with the fact that it's against the ground and has to go through a filter as
well so we wanted to kind of overpower the amount of air coming in because it
had to fight against these elements and then the air going out was just fan
grills no filters or obstructions or anything like that so we only had two of
those fans a little bit of a different configuration but should be fine now all
we have to do is take these three computers and shove them way back there
all right so we're somewhere that you don't normally see in line Tech videos
this is behind one of the sets we got the computers lined up AE inie in
betweeny are all in a row so after a year we're going to check how much dust
has accumulated in each setup I have arranged them in a way that they should
have a minimum amount of backwash to each other uh they're facing the fuzzy
wall so there's no Direct in takes this
way because the intakes on the front of the case actually come out of the sides
of the case so they're intaking from this way um and then they're shooting
air back out or in the case of any
pulling air in from the wooden wall so that should all be fine um and this is
where I'm going to leave them so now I guess we just turn them on that one
worked that one worked that one worked and then we wait
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Linus if you like this video like it if you dislike this video dislike it get
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probably screwed up the mic sorry about that uh check out this video which is a
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anyways and I'll see you guys next time