everyone's been waiting even very famous celebrities for the results
of the one-year airflow test
yes my friends we are still running them
and we are doing the video but there's only one small problem
luke doesn't work here anymore to do the stunning conclusion
so we're gonna have to walk all the way over to Floatplane media's office
hello and get luke to help me
check out which one worked or if they all didn't work
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that linked below
i actually had very little involvement in this project what is going on here
well there's any audi and in betweeny like there was before
audi has more fans blowing out i think all the
fans blowing out any has all the fans blowing in and in
between e is fairly balanced they have all been running for over a
year behind the old set but then we built this mezzanine
that we're standing in and then we tore down that set so once the mezzanine was
done and before the set got torn down they got moved up here to the office but
they were out in the warehouse under the worst possible conditions literally
construction zone let's not entirely dismiss the
possibility that we will learn something today
even if what we learn is that we're idiots and we don't know how to perform
a controlled experiment so which one is supposed to be the worst by the
conventional wisdom i think most people
think that all in is the worst okay so let's get the other ones no wait wait
wait no no all out is supposed to be the worst but all in these are these aren't
so the top and back aren't this is supposed to be the bad one
okay all out and then it sucks air into the crevices yes yes okay okay so this
is the one we start with so the outside isn't really something
to judge because they would have all had a bunch of dust settle on the top
and it's not that terrible i mean like i'm gonna do one streak on
the power supply yeah i mean it's not great it's not great um
having a look at our fan though
really makes me wonder how it is that people get their computers disgusting
enough it's like to be like gummed up wow there's a there's cobwebs in here
that bottom filter was definitely doing something
and this is audi this is audi so that means this one isn't pulling through a
filter it should have been sucking all the air in from elsewhere so this is
another thing we have to be careful with this this is another thing where it's fairly case specific because a lot of
cases don't have that huge filtered mesh on the bottom so you can also see here
that with the audi case we've actually got a lot of dust build
up here and you can assume that for every bit of dust on this mesh
yeah more got pulled in yeah actually this is
a good thing well sort of a good thing but it's a good thing to see so our
graphics card does have a dust bunny inside it yeah
so that's some build up so our CPU is good yep so on the top was good so it
actually didn't suck that much in because it was blasting everything out
which makes sense so the CPU is like sheltered almost because everything
around it was like no get out yeah so you can actually you can see some dust
streaks on these cable management holes and then but not much i bet you the
graphics card was breathing through here and through here power supply is clean
because it's through a filter actually that area of the filter is pretty concentrated
any dust that's caught in this filter was already in the computer
okay interesting so that's all pulled from
inside and these fans have a fair amount of buildup in them actually i think the
main takeaway with this one is that even in a construction zone
where clearly there was a lot of dusty buildup on top
most of your dust is coming into your case from the bottom
so if you put your computer on the ground because we didn't have
fans blowing out at the bottom that's right yeah you might have a bad time
wanna do the other extreme the test is still bad we're already learning
something hold on this is the one that is sucking everything in this is
everything in yeah so theoretically yeah this isn't going to be good either
well no okay let's start with the bottom okay
ah interesting that's weird
the power supply area doesn't have much dust no it doesn't
because the air is blowing out of here getting
filtered and then being sucked into here there's two fans like hold on there's
one two three four five fans
worth of pressure going out of here this effectively has a skirt around it oh
yeah okay so there's dust on this but it's not on the inside it's on the top
yeah it's definitely on the top that's so weird so the power supply
is completely clean yeah
how interesting that is interesting see we are learning things i did not see
this one coming that is okay that's cooler than i expected i will definitely
give it that i want to see the front okay
it's filtering stuff this is telling us that this case's intake system is like
not that great because these are about as dusty as the other one this stuff is
on the outside because it's pulling through that makes sense
oh some dust like flew away when you did that like and
it's loose which is interesting
our graphics card has no doubt that's a little more gnarly than last time
definitely more dust just like CPU because there's okay there's also
definitely more dust on the back fan CPU and the top
so GPU is a little bit better power supply is better this case does
not have filters on the top of the back so you don't get too experienced so the
main takeaway from this one is that more
airflow right around an area is going to give you a much much higher
concentration of dust and that again poor planning
is ultimately what's going to kill you yeah is the graphics card better or
worse on this one oh it's way worse way worse
so the GPU over there had to breathe in through this which was very apparent
yeah and it breathed in junky dusty air that's right this one is actually
breathing good air but that's the only piece and the power supply
i wouldn't have thought that having a filtered fan like blowing towards the
graphics card would affect the movement of the air inside like the currents
inside enough to be the difference okay so this
is sort of the um like the recommended
way so it's neither one extreme nor the other most people would go with a setup
similar to this so it's important to note that even though we've actually got
four fans pulling in and two going out the ones coming in are filtered
so these filtered ones coming in should have much less airflow than the
non-filtered ones going out yeah so right off the bat our CPU is pretty good
i would say almost as wow almost as good
but not quite there is still no not
quite at all there's definitely still noticeable dust
and that one was like actually clean so this one what's interesting is that even
though it's using a poor method of keeping dust out of
your system what it does do is it focuses all the
dust that it does pull in on the bottom and then sucked it all through that
filter for this particular case and here a bit yeah and it's going to change with
every case okay should we have a look at the filters yeah the bottom first yep okay i'll tilt
it okay so as expected
this one doesn't have an air curtain around it so the power supply does draw
air through the filter filter didn't even stop everything nope filter didn't
stop everything at all and there's a lot of dust on this yeah this is easily the
most concentrated wow there's like hairs
look at this there's like strands of wet okay there's a little bit of that on any
yeah that makes sense because these are pulling in right
yep yeah
ugh and like it plumed
okay so that's as expected so no dust bunny in the GPU
GPU fan mostly clear this one had more
fans and got slightly more total dust which
kind of makes sense makes sense and the filters are slightly more clogged which
makes sense but overall i'd say it's probably more balanced
the CPU got hit but not as hard as it did
on the really bad CPU case yeah but not as good as it did the other time
but not as well as much as this one yeah internally so it ended up being in
between which is kind of what we were aiming for we
just didn't know it was actually going to work that way
here you go then the main takeaways are
on your intake fans you want to have filtered air to the
greatest degree possible and the more airflow you have
the more dusty buildup you are ultimately going to have yeah i think a
balanced approach is good but you're gonna have to think about your
particular case your particular setup like if you're on the floor then one of
the big things we learned is you want a bunch of exhaust on the floor yeah to
keep dust away from your system it actually works yeah yeah
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LTT we're going to have that linked below just enter Linus tech tips in the
how did you hear about us section so that was actually more enlightening
than i thought i'm surprised i thought they were just all gonna be butchered
because of the construction zone so guys if you dislike this video then like come
on we finally did it you were all asking for it but if you liked it hit like get
subscribed maybe consider checking out where to buy the stuff we featured no no
no no whatever we've got our merch store linked in the video description and our
community forum which you should totally join for those of you going hey luke's
back where did luke go he's working on Floatplane yeah uh go check out
floydplane when is this video coming out i don't know
there might be the alpha up yeah maybe or not
see ya bye