we were thinking you know it would be so cool if we tried to overclock at the
North Pole but the North Pole is very cold very far away but what isn't is our
environmental test chamber with the ability to go all the way from 180° cus
to -40 we can test everything from your
Nan's cookie recipe to a computer at the North Pole so let's see just how fast a
PC can go at -40° and uh if it can even
survive Sur what will survive is this segue to our sponsor build Redux are you
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computery things so check them out at the link down below before we can take
the chamber down to -40° and Chuck a PC
in it we first need to heat it up see here's the thing at -40 condensation is
going to be a really big problem and although in the near future we're going
to have humidity control in our environmental chamber we don't yet have
the air compressor that's required for us to do that so instead what we can do
is just heat the chamber up to remove all the moisture from the air and then
cool it down now since we needed to have the chamber heated up anyway we were
curious what would the performance of a PC look like if you were to take it out
of a comfortable room temperature woo oh
that's spicy fast fast fast put it oh sorry sorry I'm putting it in I'm
putting it in and put it at an insane
49.4 de C the alltime Canadian record
for highest temperature recorded in Linton 2 years ago let's get this thing
hooked up I did not Orient it correctly so yeah we also need cables and stuff
it's a whole thing okay let's do it I mean that'll probably do right we can
just take the squid over there we got this we also need to go we can't just go
straight in we need to go over the this down do a loop and then in the reason
for that is that not now but later we
have a lot of potential for condensation to form around here and potentially drip
down our cables and we don't want it to get onto anything that matters we want
it to just drip down here or on the floor this bucket okay so this poor
computer is running at 50° right now oh
shut up there's a whole like web interface for it that I mean that makes
sense but yeah so you can fully control from here program in routines and stuff
and also see like oh we open the door there and we open the door there wow it
actually loses less temperature than I would have thought yeah it wasn't too
bad our poor CPU is sitting at
75° right now doing nothing and what's
really wild is that these temperatures aren't even unrealistic if you lived in
one of the hottest regions in India for example you could see temperatures close
to this on a fairly regular basis in the in the summer what what's our what's our
planned load like should I just cin bench it real quick instant thermal
throttle and our poor CPU is running at
a mere 4.14 4.13 I mean it's well above base
clock which is kind of impressive oh
it's it did a burning test okay okay let's see we're at 4.02
3.99 man what's everything else looking like surprisingly the motherboard vrms
are still very reasonable good job Gigabyte I guess GPU idling at 52 which
is impressive when it's sitting in a 50.6 de C chamber wow it dipped as low
as 3.94 3.93 that explains why the motherboard
vrms aren't getting hot oh yeah there's no power they're not pushing any power
through them now that we've heated up our CPU let's get an actual score for
reference I would expect 36,000 on a computer like this we are
not getting 36,000 sir I will eat my
sandal if we get 36,000 33,000 points but how will NVIDIA
Faire fer Mark you want to do fur Mark in f mark oh my God uh I want to run
like 2560 X 1440 that's pretty good for stress test Forex antus sing
go now what we're looking at on an NVIDIA GPU is not the temperature
because it's not going to go over 80 85°
they're hard limited what we're looking at is the effective clock speed because
they will just Throttle Down their performance to match whatever they can
do within that thermal Target it's doing pretty well it's doing pretty well so
far the one time that 4090 cooler is needed that fan is running at 90% though
we can't hear it over all the sound around us but that thing must be
freaking ripping okay I want to know can can I
crack it yeah go can I crack it just to hear it okay come on come on
W she's going it's hard to tell but
she's definitely going it's not in real time so it might take a minute or two to
show up but yeah we we lost a bit here
wow Alex our fan speed isn't even 100%
this thing is handling it this is how we
had a whole plan for this video where we were going to show like dog slow
performance at 50° on the GPU and then we were going to ramp it down to like
you know the average Arctic temperature in Canada -40 and show how it's like
yeah lot it's doing it what the heck
okay these coolers are so
overpacked hold on a second
4090 specs Founders okay this isn't a
Founders card this is um looks like yeah it's an ASUS stricks card but
realistically they're all going to have fairly similar environmental condition
ratings I cannot find any reference to a
safe environmental operating temperature for the RTX 4090 I guess we're off the
rails for the rest of this video all right I want to take this down
to minus 40 it does kind of make sense that it can do this cuz if you think
about like a computer case you might expect it to be in 35° you're pumping
450 watts into it for a while if the air flow isn't too great inside of the case
it might be getting to 50 very well be 51 degre over ambient but good freaking
job ASUS jeez flipping gears then modern
CPUs particularly from Intel don't even operate at Peak efficiency at room
temperature so we are expecting ah yes a
very very different outcome almost
immediately we dropped from 200 Watts down to 190 and the lower that power
consumption is the less of our total potential performance that we're getting
it's already dropped a full gigahertz of clock speed that is one millions of
clock speed oh wow yeah this is still dropping we can give it a tiny bit
longer sure now you said that until we have our compressed air setup here we
are not going to be able to control humidity I mean obviously for wetting
the air we've got this water tank so I guess the compressed air plays a role in
drying the air yeah the compressed air goes into these desant chummies right
here okay are there you get dry air out all good I see so it'll basically to go
oh no it needs to be wetter so it needs to be drier and that's pretty much it
but you need quite a bit of pressure and a lot of CFM to blast all the air
through so we need a big air compressor got it this seems to be settled in we
went from an average clock speed of 4.7 GHz all the way down to
3.55 and our power is down from over 200
watts to just 10060 now it's time to pull our
temperature down to the average Arctic temperature in the winter here in Canada
okay I hear her doing something hey buddy you okay in there now there's a
lot of leakage so that's probably just
the air blowing past the compressor
oh okay which we can look at oh also in
the time that it took you to go from over there to here we dropped
10° really I thought you said it was
going to take half an hour to pull down I guess it gets harder to pull down once
the environmental temperature is higher than what it's trying to do yeah look
just wow wow there goes another one they're
biting the dust and another one got yeah sorry okay
woo holy shnikes I underestimated the size of
that compressor wait is this a two-stage
system it looks like it but no it's not
we thought we had two stages of phase change cooling one to cool down the
chamber and one to cool down that stage but what we're actually looking at here
is a gigantic 3 and 1/2 horsepower scroll compressor and then a couple of
accumulator tanks that seem to play a role in drying the refrigerant so
removing any moisture which can't be compressed and also filtering it so that
it can operate as efficiently as possible shout out Jake Dan for helping
us read the schematics is our CPU seriously still at 100° on an OCT to
hd15 it's actually really confusing
because around like 15° C it was doing
pretty good and now the clock speeds are
dropping and so is the wattage so I wonder if like our thermal paste has
frozen oh it's been at 100° the whole time we might have just Frozen our heat
pipes uh wait did it just crash welcome
back the land of the living the gpus at
16° on the memory I really want to check it for condensation but I don't really
want to open up the door and add in a bunch of condensation see this warm air
when it touches the cold stuff will
immediately have the moisture drawn out of it where it will collect on the cold
stuff do we continue with this computer no I think it's time for us to
take it to another level this is where things get really spicy because remember
that part we mentioned about how when we open it up the warm air condensation Etc
we need to find a way to to swap components on this bench without
destroying it we're going to have to be really fast okay and once it's running
through maybe it'll be fine if it's just
sitting in there it's going to freeze
right I'm so sorry deep cool thank you for sending us your all-in-one liquid
cooler I don't know I we just going to wing it let's just open it up and see
what happens we're just going to wing it h okay
currently - 35 freaking cold okay this
is bad it is condensing already Alex
this is very bad yes all right that's off also is the
computer on right now why is the computer on oh my God it's frosting over
it's frosting over already Alex turn the computer off close the door a bit let's
get yeah more more more oh my God it's
really bad sorry Andrew you got to oh my God this is so cold we're just going to
get get the hardware after oh this is bad you got to close it more close it
more shoot me through the window just I'm in here I'm in here it's
fine okay I need the back
plate oh my goodness this she's Frosty
Alex I can tell where's the other where's the old
back plate oh fell off okay okay you got
it I have the old back plate there there's the new one yep oh
my God that's cold oh crap this is bad very bad oh it's so cold okay so just a
second okay I need to hold this back plate on I think yeah there it goes okay
good work here we go oh my gosh oh sorry I just LEL you in
the head yes oh sorry that's fine okay
is it theoretically ready to power up okay we got to close it Alex you can't
organize part wear in a little tray have you gone mad sir uh so the
power button's in there oh B oh God it's
at 92% humidity Alex why did we change the cooler
mid I'm just here to hold the door for you um it's content don't blow up my
chamber please what we should have done was brought it back up to room
temperature then pulled it down again it does appear that lonus was right and
there is no more Frost all over our computer our aiio might be
frozen but it should be fine you may remember this computer from our direct
die cooling video recently well it still
got the same direct D water block on it but instead of using an industrial
Chiller to pump fluid through the loop we're going to be running this inside
our air Chiller uh yeah I was wondering about that so instead of using Straight
water we are apparently wait is this windshield decer or is this an ah
perfect I expect some problems problem number the first this doesn't seem like
a lot of glycol problem number the second glycol when it reaches certain
temperatures gets quite V viscous and this is just a PC cooling pump this is
not your car's cooling pump have we crossed the line from fun to stupid no
what would be stupid is if we didn't use this tray because if the water from our
computer gets onto that and they Common Ground we blow up both of them don't
worry everything's fine I didn't think it wasn't but now I'm concerned no
they're fine I'm now everything's fine I'm
leaving in 5 minutes and now I'm as
intended thank you the test chamber will work when you arrive
tomorrow oh wow this is just clear antifreeze GL GL
GL wait did we ever plug in the pump for the AIO in there yes but also it's not
working so well maybe the pump's working but either way uh we're at 115 wats
right now now 100° on the CPU so uh it
turns out AIO in uh -
33° not a good time are you prepared for
a very cold looking computer oh ouch ouch ouch ouch ouch you doing all right
yep wow that's very cold this will need
to sit for a solid day or two before it
would be safe to fire up at this point even the air inside the CPU socket would
have enough moisture in it that left leg like this it would be a major concern
for it to be just pulled up in there how much glycol did you get in there I don't
know I have absolutely no way of knowing yeah it'll probably be fine all right it
seems like not fine is kind of the theme of this video though all
right um that's a lot of liquid metal right how the crap are we going to get
that off Oh serious okay I guess we
haven't actually explained in this video certain thermal compounds will perform
worse at lower temperatures and for those of you who are wondering what we
are seriously using this equipment for that's actually the closest thing to it
out of what you've seen so far is figuring out like validating
manufacturer's claims about the safe operating temperatures of their
equipment okay we going for it
yep wow this is a very hard cable to move this feels like being in an Arctic
wind yes it very much does oh my God
come on come
on okay oh yes yes yes yes yes we've got
output okay so here's the thing when we
were using the industrial Chiller obviously actually it has a very similar
cooling capacity about 5,000 Watts yeah
but the chiller is gated it won't go under 5° on the coolant theoretically
with -40° air our traditional water
cooler could go below 5° we're not
expecting it to Simply turn to solid ice immediately what we would hope to notice
though is if it was starting to solidify around the edges I think I'm starting to
see a little bit of freezing on some of the tubes it might just be external
seriously Oh no you're right holy crap that's a problem if it's around the
outside it's not too bad I don't it's around the inside I don't think it's the
outside I think it's the inside how's our CPU doing 100° at the entrance to
that radiator there's already ice the wildest thing is that that might
have been because of CPU over temperature it was only at like 80 Watts
on the CPU and 100° like that could have
actually been our problem and I don't know why if you guys enjoyed this video
you I obviously like watching us goof around so why not the most extreme Air
cooling setup yeah we haven't thrown to that in a while it's a good one it's a
classic woo oh she's cold whoa did you
hear that
yeah well the answer to how much antifreeze was in there is oh it's
really cold not enough