welcome back to the workshop today we're going to be investigating radiator fan
configuration we're using a Corsair h100i GTX it's not a graphics card don't
know why it has GTX in it but anyways and some Noctua nff 12s in a bunch of
different configurations so check out the straw pole link down below vote on
which configuration you think is going to win and let's do this
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in the video description to learn more our first test we're going to have our
nff 12's pushing air up through the radiator just two fans nothing super
crazy with push pull configurations or whatever super simple test also in AI
Suite in the motherboard we have them pinned at 60% with all of these tests
people go like oh well maybe the fan speed was changing which is why the
thermal paste application didn't change no the fan speed is static in all these
tests it's not changing if it changes it might change by like 10 RPM which just
doesn't at all matter so to Ida 64 we go
let's test out our first configuration so with the two Noctua n2s pushing up
through the radiator at an ambient room temperature of 18.1 de the core ran at
38° this is all done in Celsius we've
got our good kind of starting number let's move on forward so now the fans
are configured to pull air down through the radiator and into the case so
currently the air flow is sucking in that way so running id64 again start
test and we'll see you in 10 minutes okay so with the Noctua pulling down
through the rad we had a room ambient temperature of
18.3 and yet again a core temperature of
38 so that really didn't make any difference having them push up or pull
down so moving on we're going to start doing two sets of fans so this would
increase your costs by a fair amount because a lot of coolers including this
one will come with two fans but not four so if you want to move up to four your
costs are going to go up a whole bunch so for this to be worth it we need the
cooling to have a significant Improvement just something to keep in
mind all right so now I have two sets of
fans both pulling down into the case so
one set pushing down through the radiator another set pulling down
through the radiator we're going to check in 10 minutes and there we go see
you later that equaled an ambient temperature of 18.5 de and an actual red
out from the computer temperature for the core of 35° so we saw an improvement
of 3° but you did add two n12 fans which
is like a fair amount of cost so just keep that in mind next up we're going to
do a pretty stupid configuration we're going to have the fans on top trying to
pull up through the radiator and we're going to have the fans on the bottom
trying to push down through the radiator so opposite directions super weird just
going to see what what it does I guess Workshop yeah okay so short answer don't
do that long answer the ambient in the room was 18.7 de and the temperature of
the Cor was 48° so not great it
increased by like 10° C which is bad so
yeah don't have it so that the air is being pushed at like itself cuz that's
just a terrible idea and makes no sense next up what we're going to do is have
it all the air going up with two layers of fans we're going to have the bottom
fans pushing air up through the rad and the top fans pushing pulling air up
through the rat so let's try that one so fairly unsurprisingly with an ambient of
18.7 De and a core temperature of 35°
it's exactly the same as having the fans point the other direction so right now
we have the fans pulling up through the rad for the ones that are on the top and
we have the pants pushing up through the rad for the ones that are on the bottom
now we're going to try single layer again but on the top which includes one
of my favorite configurations but we'll do that one last so with the fans on top
pushing down through the rad we got a temperature through the computer
computer of 39° and an ambient of
18.8 which is about 1° higher than when
we started with the fans on the bottom in the same type of configuration um but
also about 1 degree higher ambient so more or less the exact same result okay
and as I expected last and definitely not least pulling up through the rad
this is my favorite configuration and our favorite configuration here at lonus
techtips because of the Dust Management Properties where it will put the Dust on
the bottom of the radiator where it's very easy to take away instead of sandwiching it somewhere and making it
very annoying cuz you have to go through the fans and all that crap it at an
ambient of 18.9 which I would like to point out is almost one full degree
higher than when we started reached about 39° on the core which is exactly
one degree higher than the ones we were running when it started so it performs
just as well as having the fans below the rad and is better for dust
management a win in my opinion so as is
seems to be with the workshop the conclusion is it doesn't really matter
that much in terms of actual cooling
unless you do something stupid like make them face each other and conflicting
airflow paths and all that kind of stuff adding another set of fans can improve
your cooling but not by a huge amount and probably not by an amount in my
opinion that I would bother getting too more fans for your rad and adding that
much thickness into the top of your case and having to deal with the them and all
that kind of crap and last but not least
I would like to reaffirm that in my opinion the best way to put the fans is
pulling up through the rad with the fans
on the top so that the dust will get caked onto the very bottom of the rad
instead of having it Go in some other direction where the dust is going to get
onto the fans themselves and onto the rad under where the fans are which is an
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