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oh god it's so big

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oh that's a radiator that's not a radiator

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that's a radiator we thought look at this thing

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if it can cool a car then surely it can cool a gaming pc right we only have to

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solve the minor challenge of figuring out how to put this

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in this

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it can't be that hard can it just like it's not that hard to tell you

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about our sponsor crucial has been making high quality memory and ssds for

9
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10
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the video description

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the thing about water cooling is that it's not magic you can water cool

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something that is to say have liquid flowing through tubes and blocks and

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radiators and pumps and still have it formal throttle if you set it up with a

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water cooling system that isn't adequate for the amount of heat output unlike an

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air cooling solution you might not see the problem right away but you can see

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in our system right here where we've got a dual 120 millimeter radiator hooked up

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to a core i7 9900k and an rtx 3090 that

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our thermals are starting to get away from us i mean if we wanted our CPU to

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run at 80 plus degrees why wouldn't we just put a decent heat

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sink on it that's because while water is excellent

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at moving heat around you still need

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something in a water cooling loop to take that heat and dissipate it to the

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surrounding environment so that's where the radiator comes in

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now the conventional wisdom is that there's sort of like a a limit to how

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much radiator you need before you start to reach the point of diminishing

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returns but i don't believe in fairy tales like that

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well i do actually but um

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suffice to say we're doing this anyway alex come on in because we gotta figure

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out a way to make this thing fly alex why don't we start with what this

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thing is so this is the cheapest car radiator

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from napa auto parts it's out of a pt cruiser 170 bucks that's why i bought it

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but i'm a little confused because it's actually got what seems to be

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dual loops built right into it so you've got an inlet and an outlet here and then i

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did a quick blow test on it before we started and determined that it has a

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second loop

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it's got a second loop here and here why would that be so this is

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for your engine it goes from up to down and then we also have the transmission

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which goes across here but like i don't quite understand how this one cools

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things why don't we focus on this puppy then we could also just go from here to

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here and just do the whole thing and say screw it oh i see what you mean yeah so

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we go in here out here into here and out

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of here yeah and maybe even put like a pump in the middle just for fun we won't

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need it that's a d5 baby it's a d5 before we do any of that however we of

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course need to flush our new radiator to avoid voiding the warranty

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hey at least this confirms the flow path for us oh yeah look at that

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doing a little pee there you know what alex this might tell us

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what parts of the radiator are like being cooled by this water you're also

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pouring water off over the whole thing yeah it's all pretty cold oh it's

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heavier now we needed a bigger sink in here okay there we go

51
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perfect okay i'm back it works

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how do we want to mount it uh i had a couple ideas the one that i

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like the most because it's kind of just the most dumbest

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is to just put it right on top like that uh-huh i mean we've got these handy

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mounting pegs one of which kind of sort of fits there yeah and i was thinking

56
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just like metal down here straight across and then

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just steel strapping onto the top of the case so it's kind of like a performance

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fin yeah like we could use this that would make my life a bit easier for

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attaching it to here yeah we could have it come off at an angle and then have a

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flap plate on the bottom i guess okay i actually just had an even better idea so

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we can still use that l bracket stuff

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but then we can attach it to this good old 80 20.

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create a little frame that goes on top and then we're able to steel strap that

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down it's gonna be it's gonna say beautiful but it's gonna be something

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i just brought out this bin called t-slot hardware it looks like that it

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might have solved all of our problems we have a whole bunch of these brackets

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that must have been leftovers from one of collins projects and i think we're

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just gonna use those and call it a day you know what this might actually turn

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out a lot better than i expected still not great but better than i expected my

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side's done it's at least hand tight are we going any tighter than hand tight or

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no hand tight's fine for now all right cool so now

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bolts and these things very very loose this should just go on

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right down here yeah

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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

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should i say craftsman i'm going to blame 80 20 for all of my problems from

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now on which 80 20 like 80 20 aluminum or the

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80 20 rule 20 of the effort that gets you 80 of the result okay yeah we are

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definitely going low effort on this uh we're all about reduce freeze recycle

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here today this is our most testing robot so well not a robot or most tester

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hammer goes turns on the lights you know exactly when the mouse started moving

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but it's outlived its usefulness and i'm just gonna use parts of it for

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this all right so this is the basic thought

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this goes across here i have no clue

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if this should be wider or not but i i think it'll be fine okay this should be

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oh my god oh it's even peeing on me

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this is so stupid not bad at all now all

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we need to do is get some fans on it and plummet oh fortunately we have an easy

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plan for at least one of those things we're gonna take these zip ties and run

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them through our fans like so

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see that two zip ties per fan oh yeah more than that was never an option yeah

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we have kind of outdone ourselves here i mean if it's stupid and it works it's

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not stupid so there's a couple ideas of how to do the tubing for the

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transmission one it's easy we have just adapters perfect work love it uh for the

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bigger ones i have a really terrible idea i love it so we have a bike inner

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tube here i don't know why but we do

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the basic thought was

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to cut this stretch it around those right there use

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that as a reducer and then just cover it in tuck tape probably duct tape then

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maybe a towel to soak up the stuff that gets through that and then wrap it in

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tuck tape again

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okay i don't have a better idea right now i

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hope this works because that was a bike tire that was destroyed which would be

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kind of sad did you kill it already oh yeah it's dead oh that's super dead i

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was hoping to give it a little bit of thought before you destroyed it not so

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bad i've seen dumber stuff under this roof maybe more zip ties and then let's

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get a nice long piece of tube to go on there you can always tell when it's a

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friday and i'm supposed to be hosting lanchow because things get a little

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a little bit this this is a bad one yes and also no this isn't even that stupid

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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

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vision here alex

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this might actually freaking work i'm sorry alex i didn't have the right

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amount of faith in you and i should have

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this is what's going to be doing the transmission cooler loop so this clamp

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might be too big but i guess we'll find out in a second once i tighten it down a

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bit we're like actually not very far off

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wonderful nice one more

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i can hear the whys coming from around the world

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is there any leak test like we're basically assuming it's going to leak

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aren't we uh this is pretty drippy for a case that

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has an open hole in the top of it you can't get me a piece of plexi or

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something or plywood even i guess that would be more smarter don't

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mind me i'll just hold this here a rag alex come on

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i have a better idea my arms are getting tight i i have a different idea so what

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we do you place it on top and then we just put a parts tray underneath it no

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because it's going to drip from lots of different places alex

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for better or for worse this is a thing that exists now so am i just am i just

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disconnecting this thing like why not right i guess so yeah okay i mean it's

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near the top of the loop how much water could leak right quite a bit i would say

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well there's only one way to know for sure no no actually i think none is

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going to leak there you go you ready uh sure boom none

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see that damn yeah okay just gonna ratchet strap this down

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here you know got to be nice and secure oh look just like i planned we're adding

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the feature of having a shut off valve so that you have a shutoff vault right

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here yeah just like you planned yes thank goodness we have the 40 ouncers

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now hey

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i'm so ready you only live once alex come on

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hook me up okay here we go you ready

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uh the fans aren't turning on are they supposed to ready no they're not plugged

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in yet uh hello hello mr pump

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oh yeah it's leaking pretty good uh okay we need more absorbent materials

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do we have anything reusable

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uh well no i need it on this oh yeah okay there we go now we're talking it's

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so bad uh well yeah

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we never ever thought at any point that this was not going to be bad

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hey you turned off the power supply yeah because it was leaking on the top of the

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computer oh i mean that's why we've got wood on there instead of scraps of rag

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like you were going to put there we've also got scraps of rag we do have both

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that's redundancy right there it's protection i can't tell if it's leaking

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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

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to a like compensate for leaks right now no i would actually like this pump to go

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at full speed i'm going to disconnect the pwm controller midjig oh my god it's

152
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so much okay i have a different idea there it goes whoa hey ho how you doing there buddy oh

153
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god it's so big

154
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oh uh we have a problem did you take off

155
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your tape yes okay should i kill it no no no no no that will be worse uh we

156
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just need more absorbency okay well just a second i'm coming with a fix

157
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oh it's kind of okay stop stop stop you

158
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need to stop can i get another small zip tie uh alex can you hold this or someone

159
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do you have the zip tie by any chance what a boss man i feel like i'm

160
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working on like a field wound okay do

161
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you want to move it's a little bit the pump's running dry

162
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well i'm working on it aren't i okay i can't wait for this stupid slow fun oh

163
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my god this is so bad what do you have it's aquarium putty wait you had

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aquarium putty this whole time why am i just finding out about this now i don't

165
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actually know that there's any water in the CPU block alex doesn't really look

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like it we need more stuff that's not helping at all why did we put it on top

167
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that was your idea it was andy's idea it

168
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was not andy's idea don't you blame this on gentle andy

169
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in response to our earlier query as to

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whether it's just losing water at this rate i think it might be we can't get

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the water up there you might have been right about the head pressure i was so

172
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sure that the d5 would come through

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one thing we can do is we can tip it

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once it's full the head pressure issue becomes a non-issue we can also try

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power cycling it again don't hit the computer though i'm just

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gonna do the pump real fast real fast real quick styles

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go back on pump

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no see it's got bubbles in it yeah that's why it's not able to do it oh

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it's full oh wait yeah those drips uh are big and coming from very high

180
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they're hitting this tube which could put the graphics card in jeopardy but

181
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that's good i mean the graphics card being in jeopardy is not good but the

182
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the CPU getting water is good yeah is the CPU getting water it looks like it

183
00:13:08,000 --> 00:13:13,360
yeah i had a joke in my head before this that i was going to call it a success if

184
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we didn't kill any hardware and it's become a much more real thing than i

185
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expected holy crap balls we have flow where's my

186
00:13:19,920 --> 00:13:25,920
sweater lttstore.com okay

187
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made of the finest french terry stealth hoodie

188
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LTT Store i'm starting the stress test so CPU

189
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burner we were doing 16 threads right alex yes

190
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oh my god and wait there's so much water alex help me out here the resolution is

191
00:13:40,399 --> 00:13:45,360
2560 by 1920 right yes okay where's the

192
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CPU burner hold on what were you using to monitor um hw info yeah what are our

193
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attempts looking like i'm checking i'm checking i'm on it hold on we're running

194
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out of water here boys good god we are losing a lot of water

195
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are the fans even running alex no well why not uh what have you been doing this

196
00:14:02,079 --> 00:14:09,279
whole time flex extenders i've been making sure that we don't kill the system yeah well that's going great

197
00:14:06,880 --> 00:14:14,000
isn't it it is it's not dead yet does this have molex on it because we could

198
00:14:11,120 --> 00:14:16,959
use this one oh yeah that works oh wow this is dripping more than i thought

199
00:14:15,279 --> 00:14:23,120
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

200
00:14:20,160 --> 00:14:27,279
about to run dry do we have fan spins what no fans are spinning oh crap

201
00:14:25,199 --> 00:14:31,839
there's a lot of what's going on here i think the pump is not pumping shoot it's

202
00:14:29,360 --> 00:14:35,279
it's overflowing come on pump come on baby oh

203
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she's leaking water we're getting almost no flow to the CPU

204
00:14:37,199 --> 00:14:42,639
jumper fan's on fan's not on uh the power

205
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supply is not connected to the test bench oh that would do it

206
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we have flow to the CPU uh CPU temps are

207
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holding our maximum is 77 degrees okay

208
00:14:51,519 --> 00:14:59,199
that's better than one over that was when it wasn't flowing uh we are at 67

209
00:14:56,240 --> 00:15:02,880
max right now couple fans we got four we got four fans spinning i just gotta add

210
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some more water why are the other ones not spinning uh they could not be hooked

211
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up i don't know i just started chucking stuff oh my god this molex connector is

212
00:15:08,480 --> 00:15:13,839
just absolutely gone though at what point do we just rip the pins out and

213
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chuck it in okay i'm gonna find which rags are not wet and move them into

214
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spots where rags are wet i've got um more fans spinning now good news our CPU

215
00:15:21,199 --> 00:15:28,000
is only 63 degrees GPU is a 42 so that's also way lower than before okay all

216
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right we've got six fans spinning where's the rest of my fan connectors

217
00:15:29,600 --> 00:15:35,120
here alex did you bring enough fan connectors uh

218
00:15:35,279 --> 00:15:42,639
oh come on oh my god do you have side cutters it's

219
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a three pin the fan's four pin alex

220
00:15:42,639 --> 00:15:47,839
yeah that's better oh geez we have another leak okay so that needs

221
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to go this also needs to go am i spinning another one it's got the

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paper towel in it alex wait hold on

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that's an industrial alex we gotta top up the water just a

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second it's like no no it's gonna it's gonna get all over

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the table if we don't top up the water so the good news is 4.9 gigahertz on

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what is that eight cores we're currently at

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65 degrees on the CPU 45 degrees on the

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GPU way better than before this is clearly a win you know alex i think that

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it's going to be very hard for us to evaluate the efficacy of the radiator

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when what's actually happening is we are just completely replacing the water with

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cool tap water every you know probably 10 to 15 minutes

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this is pc gaming the good news is the transmission ones

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aren't leaking that is good news actually oh geez the paper towels become

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saturated hold on i need one more extension hey

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why are you not spinning is it spinning now no

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how about now yeah

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it's get i don't know how much longer we can keep

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this running so we're gonna have to conclude it now we are at maximum turbo

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on our CPU 4.9 gigahertz on all cores

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effectively because those threads that we're not using for the CPU burn test

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are being used by firmark for the GPU we are maxed out so our hottest core is at

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just 63 degrees that compares to over 80

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degrees with our wimpy dual radiator okay so that's a big 20 degree

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improvement as for our GPU let's fire up fur mark

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here we are sitting right pretty at about uh

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35 degrees what were we at 40 before

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uh no 60. 60. wow we've dropped 25

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degrees on our GPU and all it cost us was holy crap i don't have any water

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alex uh we're gonna have to top this up in just a second here

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and in terms of like acoustics and

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convenience factor um it's pretty loud

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cooling fan oh freak it's going it's getting on this power supply oh god it's

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getting on everything okay we gotta shut this down we gotta shut it down okay

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this is gonna be so bad okay Linus can you grab the

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uh bucket that's over there see you later can you believe everything

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survived this audio yeah wow massive props to uh all the makers of the

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hardware we used today