oh god it's so big
oh that's a radiator that's not a radiator
that's a radiator we thought look at this thing
if it can cool a car then surely it can cool a gaming pc right we only have to
solve the minor challenge of figuring out how to put this
in this
it can't be that hard can it just like it's not that hard to tell you
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the video description
the thing about water cooling is that it's not magic you can water cool
something that is to say have liquid flowing through tubes and blocks and
radiators and pumps and still have it formal throttle if you set it up with a
water cooling system that isn't adequate for the amount of heat output unlike an
air cooling solution you might not see the problem right away but you can see
in our system right here where we've got a dual 120 millimeter radiator hooked up
to a core i7 9900k and an rtx 3090 that
our thermals are starting to get away from us i mean if we wanted our CPU to
run at 80 plus degrees why wouldn't we just put a decent heat
sink on it that's because while water is excellent
at moving heat around you still need
something in a water cooling loop to take that heat and dissipate it to the
surrounding environment so that's where the radiator comes in
now the conventional wisdom is that there's sort of like a a limit to how
much radiator you need before you start to reach the point of diminishing
returns but i don't believe in fairy tales like that
well i do actually but um
suffice to say we're doing this anyway alex come on in because we gotta figure
out a way to make this thing fly alex why don't we start with what this
thing is so this is the cheapest car radiator
from napa auto parts it's out of a pt cruiser 170 bucks that's why i bought it
but i'm a little confused because it's actually got what seems to be
dual loops built right into it so you've got an inlet and an outlet here and then i
did a quick blow test on it before we started and determined that it has a
second loop
it's got a second loop here and here why would that be so this is
for your engine it goes from up to down and then we also have the transmission
which goes across here but like i don't quite understand how this one cools
things why don't we focus on this puppy then we could also just go from here to
here and just do the whole thing and say screw it oh i see what you mean yeah so
we go in here out here into here and out
of here yeah and maybe even put like a pump in the middle just for fun we won't
need it that's a d5 baby it's a d5 before we do any of that however we of
course need to flush our new radiator to avoid voiding the warranty
hey at least this confirms the flow path for us oh yeah look at that
doing a little pee there you know what alex this might tell us
what parts of the radiator are like being cooled by this water you're also
pouring water off over the whole thing yeah it's all pretty cold oh it's
heavier now we needed a bigger sink in here okay there we go
perfect okay i'm back it works
how do we want to mount it uh i had a couple ideas the one that i
like the most because it's kind of just the most dumbest
is to just put it right on top like that uh-huh i mean we've got these handy
mounting pegs one of which kind of sort of fits there yeah and i was thinking
just like metal down here straight across and then
just steel strapping onto the top of the case so it's kind of like a performance
fin yeah like we could use this that would make my life a bit easier for
attaching it to here yeah we could have it come off at an angle and then have a
flap plate on the bottom i guess okay i actually just had an even better idea so
we can still use that l bracket stuff
but then we can attach it to this good old 80 20.
create a little frame that goes on top and then we're able to steel strap that
down it's gonna be it's gonna say beautiful but it's gonna be something
i just brought out this bin called t-slot hardware it looks like that it
might have solved all of our problems we have a whole bunch of these brackets
that must have been leftovers from one of collins projects and i think we're
just gonna use those and call it a day you know what this might actually turn
out a lot better than i expected still not great but better than i expected my
side's done it's at least hand tight are we going any tighter than hand tight or
no hand tight's fine for now all right cool so now
bolts and these things very very loose this should just go on
right down here yeah
oh you're a piece of crap i mean if it's a piece of crap shouldn't we look to the craftsman i'm not saying it's good or
should i say craftsman i'm going to blame 80 20 for all of my problems from
now on which 80 20 like 80 20 aluminum or the
80 20 rule 20 of the effort that gets you 80 of the result okay yeah we are
definitely going low effort on this uh we're all about reduce freeze recycle
here today this is our most testing robot so well not a robot or most tester
hammer goes turns on the lights you know exactly when the mouse started moving
but it's outlived its usefulness and i'm just gonna use parts of it for
this all right so this is the basic thought
this goes across here i have no clue
if this should be wider or not but i i think it'll be fine okay this should be
oh my god oh it's even peeing on me
this is so stupid not bad at all now all
we need to do is get some fans on it and plummet oh fortunately we have an easy
plan for at least one of those things we're gonna take these zip ties and run
them through our fans like so
see that two zip ties per fan oh yeah more than that was never an option yeah
we have kind of outdone ourselves here i mean if it's stupid and it works it's
not stupid so there's a couple ideas of how to do the tubing for the
transmission one it's easy we have just adapters perfect work love it uh for the
bigger ones i have a really terrible idea i love it so we have a bike inner
tube here i don't know why but we do
the basic thought was
to cut this stretch it around those right there use
that as a reducer and then just cover it in tuck tape probably duct tape then
maybe a towel to soak up the stuff that gets through that and then wrap it in
tuck tape again
okay i don't have a better idea right now i
hope this works because that was a bike tire that was destroyed which would be
kind of sad did you kill it already oh yeah it's dead oh that's super dead i
was hoping to give it a little bit of thought before you destroyed it not so
bad i've seen dumber stuff under this roof maybe more zip ties and then let's
get a nice long piece of tube to go on there you can always tell when it's a
friday and i'm supposed to be hosting lanchow because things get a little
a little bit this this is a bad one yes and also no this isn't even that stupid
now that i see it yeah a couple of big boys and then a couple of small ones yeah i got it i'm coming i see the
vision here alex
this might actually freaking work i'm sorry alex i didn't have the right
amount of faith in you and i should have
this is what's going to be doing the transmission cooler loop so this clamp
might be too big but i guess we'll find out in a second once i tighten it down a
bit we're like actually not very far off
wonderful nice one more
i can hear the whys coming from around the world
is there any leak test like we're basically assuming it's going to leak
aren't we uh this is pretty drippy for a case that
has an open hole in the top of it you can't get me a piece of plexi or
something or plywood even i guess that would be more smarter don't
mind me i'll just hold this here a rag alex come on
i have a better idea my arms are getting tight i i have a different idea so what
we do you place it on top and then we just put a parts tray underneath it no
because it's going to drip from lots of different places alex
for better or for worse this is a thing that exists now so am i just am i just
disconnecting this thing like why not right i guess so yeah okay i mean it's
near the top of the loop how much water could leak right quite a bit i would say
well there's only one way to know for sure no no actually i think none is
going to leak there you go you ready uh sure boom none
see that damn yeah okay just gonna ratchet strap this down
here you know got to be nice and secure oh look just like i planned we're adding
the feature of having a shut off valve so that you have a shutoff vault right
here yeah just like you planned yes thank goodness we have the 40 ouncers
now hey
i'm so ready you only live once alex come on
hook me up okay here we go you ready
uh the fans aren't turning on are they supposed to ready no they're not plugged
in yet uh hello hello mr pump
oh yeah it's leaking pretty good uh okay we need more absorbent materials
do we have anything reusable
uh well no i need it on this oh yeah okay there we go now we're talking it's
so bad uh well yeah
we never ever thought at any point that this was not going to be bad
hey you turned off the power supply yeah because it was leaking on the top of the
computer oh i mean that's why we've got wood on there instead of scraps of rag
like you were going to put there we've also got scraps of rag we do have both
that's redundancy right there it's protection i can't tell if it's leaking
less or if it's all just going into that rag oh it's all going in the rag it's leaking a lot oh wait am i just filling
to a like compensate for leaks right now no i would actually like this pump to go
at full speed i'm going to disconnect the pwm controller midjig oh my god it's
so much okay i have a different idea there it goes whoa hey ho how you doing there buddy oh
god it's so big
oh uh we have a problem did you take off
your tape yes okay should i kill it no no no no no that will be worse uh we
just need more absorbency okay well just a second i'm coming with a fix
oh it's kind of okay stop stop stop you
need to stop can i get another small zip tie uh alex can you hold this or someone
do you have the zip tie by any chance what a boss man i feel like i'm
working on like a field wound okay do
you want to move it's a little bit the pump's running dry
well i'm working on it aren't i okay i can't wait for this stupid slow fun oh
my god this is so bad what do you have it's aquarium putty wait you had
aquarium putty this whole time why am i just finding out about this now i don't
actually know that there's any water in the CPU block alex doesn't really look
like it we need more stuff that's not helping at all why did we put it on top
that was your idea it was andy's idea it
was not andy's idea don't you blame this on gentle andy
in response to our earlier query as to
whether it's just losing water at this rate i think it might be we can't get
the water up there you might have been right about the head pressure i was so
sure that the d5 would come through
one thing we can do is we can tip it
once it's full the head pressure issue becomes a non-issue we can also try
power cycling it again don't hit the computer though i'm just
gonna do the pump real fast real fast real quick styles
go back on pump
no see it's got bubbles in it yeah that's why it's not able to do it oh
it's full oh wait yeah those drips uh are big and coming from very high
they're hitting this tube which could put the graphics card in jeopardy but
that's good i mean the graphics card being in jeopardy is not good but the
the CPU getting water is good yeah is the CPU getting water it looks like it
yeah i had a joke in my head before this that i was going to call it a success if
we didn't kill any hardware and it's become a much more real thing than i
expected holy crap balls we have flow where's my
sweater lttstore.com okay
made of the finest french terry stealth hoodie
LTT Store i'm starting the stress test so CPU
burner we were doing 16 threads right alex yes
oh my god and wait there's so much water alex help me out here the resolution is
2560 by 1920 right yes okay where's the
CPU burner hold on what were you using to monitor um hw info yeah what are our
attempts looking like i'm checking i'm checking i'm on it hold on we're running
out of water here boys good god we are losing a lot of water
are the fans even running alex no well why not uh what have you been doing this
whole time flex extenders i've been making sure that we don't kill the system yeah well that's going great
isn't it it is it's not dead yet does this have molex on it because we could
use this one oh yeah that works oh wow this is dripping more than i thought
andy do you have footage of this yeah this is all for nothing if we don't capture it on video oh crap the pump's
about to run dry do we have fan spins what no fans are spinning oh crap
there's a lot of what's going on here i think the pump is not pumping shoot it's
it's overflowing come on pump come on baby oh
she's leaking water we're getting almost no flow to the CPU
jumper fan's on fan's not on uh the power
supply is not connected to the test bench oh that would do it
we have flow to the CPU uh CPU temps are
holding our maximum is 77 degrees okay
that's better than one over that was when it wasn't flowing uh we are at 67
max right now couple fans we got four we got four fans spinning i just gotta add
some more water why are the other ones not spinning uh they could not be hooked
up i don't know i just started chucking stuff oh my god this molex connector is
just absolutely gone though at what point do we just rip the pins out and
chuck it in okay i'm gonna find which rags are not wet and move them into
spots where rags are wet i've got um more fans spinning now good news our CPU
is only 63 degrees GPU is a 42 so that's also way lower than before okay all
right we've got six fans spinning where's the rest of my fan connectors
here alex did you bring enough fan connectors uh
oh come on oh my god do you have side cutters it's
a three pin the fan's four pin alex
yeah that's better oh geez we have another leak okay so that needs
to go this also needs to go am i spinning another one it's got the
paper towel in it alex wait hold on
that's an industrial alex we gotta top up the water just a
second it's like no no it's gonna it's gonna get all over
the table if we don't top up the water so the good news is 4.9 gigahertz on
what is that eight cores we're currently at
65 degrees on the CPU 45 degrees on the
GPU way better than before this is clearly a win you know alex i think that
it's going to be very hard for us to evaluate the efficacy of the radiator
when what's actually happening is we are just completely replacing the water with
cool tap water every you know probably 10 to 15 minutes
this is pc gaming the good news is the transmission ones
aren't leaking that is good news actually oh geez the paper towels become
saturated hold on i need one more extension hey
why are you not spinning is it spinning now no
how about now yeah
it's get i don't know how much longer we can keep
this running so we're gonna have to conclude it now we are at maximum turbo
on our CPU 4.9 gigahertz on all cores
effectively because those threads that we're not using for the CPU burn test
are being used by firmark for the GPU we are maxed out so our hottest core is at
just 63 degrees that compares to over 80
degrees with our wimpy dual radiator okay so that's a big 20 degree
improvement as for our GPU let's fire up fur mark
here we are sitting right pretty at about uh
35 degrees what were we at 40 before
uh no 60. 60. wow we've dropped 25
degrees on our GPU and all it cost us was holy crap i don't have any water
alex uh we're gonna have to top this up in just a second here
and in terms of like acoustics and
convenience factor um it's pretty loud
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guys enjoyed this video and you really like watching me and alex work on janky
cooling setups maybe check out the whoops ultimate air cooled laptop where
we took a laptop and overclocked it to five gigahertz with a blowing matron
cooling fan oh freak it's going it's getting on this power supply oh god it's
getting on everything okay we gotta shut this down we gotta shut it down okay
this is gonna be so bad okay Linus can you grab the
uh bucket that's over there see you later can you believe everything
survived this audio yeah wow massive props to uh all the makers of the
hardware we used today