now whether it's whiskey orangee juice or Mountain Dew I guarantee you if it's
in fluid form somebody somewhere has
filled up a loop with it cooled their computer and posted their results online
so given how done to death this concept is I really never thought that we'd end
up exploring the whole like weird or
wacky exotic coolant concept that is
until I read a comment from one of our viewers Jor leer St who suggested that
we try using concrete now hold on I know
what you guys are thinking but based on some of our preliminary testing I have
reason to believe that this may actually
work over the last couple of days Alex
has put together all the materials that we're going to need to build what I
believe is going to be the world's first
concrete cooled gaming
PC all right so the first thing we're going to need is some Hardware so we
gathered up the parts for a pretty sweet modern gaming PC here we've got
ourselves a uh cor i7
9700k uh 16 gigs of memory we've got uh
RTX uh 2080 not too shabby I mean the
thing is if we're going to be doing a test like this we want to use something
that's representative of a high performance gaming machine because if
you use all low power stuff and then you end up with really great thermal results
then all you've managed to demonstrate is that low powerered Hardware produces
less heat and doesn't run as hot as high performance stuff so like what's the
point of that right exactly which one is this the
master case something or rather yeah oh the maker 5T oh this is an older one
they did a bunch of um sponsored stuff
with it oh no it's not actually locked is it
um can we unlock it from the
inside okay my left ARM is a little skinnier than my right for no reason at
all well problem solved thermal take wins by
default power for the motherboard there we go man if this
works I'm going to be
just it really shouldn't but then like
you can't deny the initial testing yeah you really can't we weren't even going
to do this video yeah people might be surprised how many things we try and
just never makes it to video now normally these days we use a
triple 120 mm radiator but again if
Alex's calculations are correct we should be able to get away with just a
double and get similar or even better results so this is it for our build you
know it's actually got kind of like an old school charm to it I like
it oh you doing there that is the heaviest bag of coolant I have ever seen
before oh wow 34 kgs one part quick
creep mortar cement two and A4 to three parts Masonry sand yeah we're we're not
uh putting sand in there well yeah obviously obvious reasons yeah that'd be
stupid okay I'll bring this guy I'll uh I'll get a bucket of water
he what did you need my help for exactly I don't know for whatever reason I thought we'd need two people one to like
sort of hold it and make sure but this is actually working pretty well do we even need such a big
mixer we need like a liter of concrete
well um have you ever made concrete before Yes actually it's been a while
though now that I think about
it yeah let's make sure we have enough
yeah I think it needs more concrete okay I mean if we want to take advantage of
the cooling potential of it then we have to make sure we actually have enough
Concrete in there okay that's starting to look kind of closer look we're a tech
Channel okay how the pros do it you want concrete tips you watch a concrete
Channel just look at this yeah this will be great all right so I guess let's get
a base line and reading with water first all right I was just going to start
putting the concrete in no ah shoot
right yeah good call good call and that way we can make sure the system actually
even works too you know it's funny you see to be expressing a fair bit of
skepticism about this whole idea but need I remind you that you were the one
who did the initial testing like look at this hey it posted nice okay so we've
got working Hardware now let's just see if we can boot into Windows so we're at
about 35 to 40° idle let's go ahead and
start our stress test here okay pretty good not bad it's like about what I'd
expect so 55 to 60° so everything seems
to be working normally so it seems like it's basically leveled off like we could
run it for while longer but we're just at 62° maximum yeah this is exactly what
we'd expect so all right let's drain it
we want to blow out as much of the water as we can so that we don't have I mean
obviously the concrete is just concrete and water so a little bit of extra water
isn't going to kill it but we don't want to get our ratio off you know I'm beginning to have some
second thoughts we might need to be a bit water here hold on a second look at
this as it moves you can actually see it
turn more liquid that's what you were saying was supposed to help us right see
that like you can see it's really solid but as it moves it actually turns to a
liquid so you can see the reservoir is actually filling up a lot better than we
expected well than I expected anyway I don't know what your expectations were
so I am more than halfway done check this out oh yeah not bad and what's
crazy is you can actually see that even though it's clearly a liquid cuz it's
flowing in there it's kind of solid right now how's that
going to affect things when we get the pump hooked up uh we might need to power
cycle it a couple times but it also might just work for those wondering this
is why we used halfin tubing because you're going to need a pretty thick with
two C's tube in order to get concrete
through it so uh how how do I do this without making a mess oh the tubes yeah
oh that's not a problem spray it down with some water and then just give it wipe down
with this I mean it's not going to be perfect but yeah do yeah for sure um oh
this is exciting so we've got two pieces
of Tu being filled so we can go ahead and attach the
pump so Alex this is great I've got two of the tubes on already
mhm and I can actually attach the other one to the res right now oh nice so okay
I guess this this the uh the moment of
truth so we do get the uh the Heat and
the pump going it should like make it more liquidy and just kind of get her on
through but uh these are like the heaviest tubes I think I've ever felt
and that that looks really thick in
there oh that sound do you hear the pump
yeah like wait oh uh it's moving dang
it it sounds questionable but uh crap I
think you were right is it going to boot though no I already
posted you have got to be kidding me
this shouldn't work okay so hold on a second I was
pretty scared up to now but uh why does this work can you are you seeing this no
no the tubes like are you seeing this
okay we're idling it's moving idling at 24 we were doing 40 hold on check the
check the step 28 maximum uh no way
start we jumped like right up to like 52
four wait what do you mean 52 you mean on the other one yeah on the last one we
jumped like holy C crap even though the
cool in is moving like you can clearly see there's Flex that aren't it's almost
like there's an inner channel of movement but around the outsides of the
tubes it doesn't move at all right and now maximum 48° so like we can leave
this for a bit the thing about water cooling is that normally you only get
heat being transferred at the Block and
at the rad yeah because like the great thing about water is that has such a
high heat capacity right yeah but that's exactly why water is supposed to be the
best thing for liquid cooling well what the thing is is that concrete is sort of
like a ceramic of sorts but a ceramic that you can like have sort of flowing
around right so it not only is like
heating up there and there but it's also like getting into the concrete that can
deposit the heat into the water all along here and then like all along here
it will be just taking that heat away as it after go that makes so much sense
that's why nobody likes having like a concrete floor in their bedroom like
when you get out of bed and you step onto a concrete floor immediately it
draws all the Heat away from your feet and like same thing with like a basement
then that's why your basement never gets hot in the summer so why has nobody ever
explored this before we are sitting right now at anywhere from 49 to 50° C
that is a significant Improvement and if you look at this the CPU temp is
actually at 28° that's a 10° Delta from just water
so this is incredible I mean it doesn't look great I mean we could we could
clean it up a fair bit and everything you know it doesn't look amazing but the
results totally speak for themselves I mean is it high five time I think so
just ow my hands are kind of cold from
working with the the concrete which makes sense again like that's why your
hands get cold when you work with it like it's so obvious
now Alex honest you have to come see this
what's up what's up uh just just come along it's a okay sorry I'll be back
kind of bad things hold on oh no it's
not the concrete PC is it you know how
we just kind of left it last night yeah cuz like you know we were here kind oh
my God it's not running yeah I think we had like a brown
out or something last night oh
no the uh a
uh oh crap this like doesn't
Bend but like I don't know if you can see in there but this
is clearly problematic yeah
like hold on we we could maybe try uh
turning it on and seeing if it'll go but I oh I don't think that's a very good
idea no
shoot Okay so we've definitely
identified the downside to concrete cooling but that kind of comes with the
territory with any sort of Enthusiast
grade solution and I don't think it's unreasonable to expect people to have a
UPS so given that we got a 10° improvement in our CPU temps I'm still
comfortable recommending it we have certainly seen computer hardware
efficient AOS do more more crazy things
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