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oh you guys are in for a treat today oh

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this right here is a relic

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a pc cooling solution

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that i haven't used since the last time that AMD had a

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relevant high-end desktop processor

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and so what better way to celebrate AMD's revival as a bonafide high-end

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option thanks to the threadripper 1950x

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then by resurrecting what i call

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the chiller a sub-zero liquid cooling device that

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might not look like much but like the uh

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thousand-year bird of prey i don't want to get in trouble with disney

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has got it where it counts

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okay so step number the first i have already done this before but it never

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hurts to do a sanity check when you're gonna do something insane

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is to make sure that what used to be a

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window mounted air conditioning unit

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is still fully functional so here's your hot side this is called the condenser so

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this is where your phase change coolant comes to have the fans blow through it

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and change it from a gas to a liquid this is our compressor which compresses

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that fluid and then right over here this is our evaporator so this is where the

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compressed fluid goes to be exposed to something hot in our

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case it'll be our CPU's heat and evaporate then it gets moved back

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around to the condenser

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full load in ida 64. about 73 degrees on the CPU

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okay cool now we know that

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let's see how much of a difference we can make

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there's that hand mark beautiful while that's running we're going to need

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a few supplies first up is a care package from none other than

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the legendary der bauer funny story like

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two months before i decided to resurrect that thing i threw away so since the

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last time i went sub-zero for like a 24

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7 system there have been some changes to the

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conventional wisdom so it used to be that we used dielectric grease in

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anywhere where there were pins around the socket and

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kneaded eraser was the most popular thing for filling in the bigger gaps

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around the socket not so anymore nowadays apparently we're

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just using vaseline anywhere where there are contacts

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and then we're using this stuff paint it onto the board

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because it comes off really easily

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liquid tape we're not as concerned about

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condensation as guys that are doing like crazy

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you know liquid nitrogen overclocking or anything like that

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because we are not going down that low and it should be noted that we don't

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have to put this on too heavy because we're not trying to thermally

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insulate or anything like that we're just trying to keep moisture out of

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everywhere that the brush touches oh you know what i can probably just use

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the big brush for this woo here we go

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technically removing things like stickers would probably be a pretty good

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idea um though again i'm just really not that

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concerned about it oh look at that oh

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abuse hardware abuse yeah i don't think ASUS is gonna want

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this board back the other important thing here is that we've gone with a metal top one

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so this is a nickel topped version of the block and the reason that's

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important is that if we were running oh shoot these uh

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these barbs aren't gonna fit i'm gonna have to go get different ones whoops

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okay then so if we were running a different version of the block this

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plexi here could crack and over the long

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term it would be degraded by the kind of coolant we're using is that my vaseline here

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yeah yeah dog okay

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i'm just gonna jam that in there and

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vaseline it up i mean the vaseline is supposed to make it go in easier but

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so normally you would really you know cut around capacitors and you would do a

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super amazing job of getting it all nice and tight

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but the idea is that this is the actual thermal insulation

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now the key to any good insulation application

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is no air gaps this is literally the worst insulation of all time

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not every thermal compound is suitable for sub-zero cooling some of them

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actually perform worse if you go too low so this one is

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whoa shoot that was not what i meant to do

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stop it oh this is goopy thermal compound we also actually have to

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insulate our block and the reason for that is that if you

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think about it metal is quite thermally conductive right

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so if we have below ambient

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coolant running through it

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this block is actually going to sweat and it's going to

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drip onto the other components of our system if we let it uh oh one thing

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we're going to need to do before we do that though is get our tubing attached

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so there are better tubings you know what i'm just not even going to

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say what i'm using because there are definitely better tubings for sub-zero

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applications but one thing that we are doing that's a little bit unusual is i'm using 3 8 inch

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tubing over a half inch barb

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and this is kind of a classic aka old people water cooling technique i

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would actually expect this to do a reasonably good job like i'm going to

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leave this running while i go down and do lanchow later

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and i do not expect there to be any condensation on here

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so that right there is the CPU area

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and then next up you really want some of this stuff

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so this is another armaflex product and it's just a

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an insulation tube thing that you can that you can throw onto the tubing oh

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okay this is legitimately kind of a problem

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maybe with a like a stick you do a couple layers of this guy

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followed by another thing that will be different from this guy

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is he really putting that graphics card in there again

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knowing what he knows from last time

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yes yes he is there's nothing about this project that

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i recommend trying at home

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oh yeah okay

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literally literally dangerous

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yeah like how was there enough room for oh

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this has been moved like ah look at this

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that's been shifted why did i do this why am i showing other

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people this like where's the screw from there we go now you might be wondering

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if this is actually enough airflow and the answer is yes

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so the whole cooling system actually requires three plugs

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one for the compressor one for the pump

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and one for the cooling fans

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now what we're gonna do is fire it up for real

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okay why aren't those cooling fans spinning

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hey there they go okay

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dang it Jake this is what happens when you put Jake in charge of zip tying the

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stupid fans before you start

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okay so now we need to figure out our tubing runs we're going to go from the outlet of the block and we're going to

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give ourselves a little bit of slack and then we're going to come through

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this cable management hole here and then we're going to go underneath

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the evaporator and we're going to let that kind of pin it down so that the

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warm liquid is as far away from here we go the

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outlet of our reservoir as possible so that it has to travel across

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the evaporator before it can be sucked into the pump so right now it's at 80

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degrees fahrenheit whatever the hell that is i don't know fahrenheit

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if anyone's wondering no this is not to code

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and also no it will not be staying running for very long

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okay there's so many things that can go wrong

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here so many things to go wrong

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and what can go right a cold CPU is this really worth it

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ah that's better that's

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dang it out

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i think we're ready i hope i have enough

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i sincerely hope this is enough

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and here we go again

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and now we don't actually want to run a sub-zero cooling system without the

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system running because then it gets too cold you'll get condensation for sure

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you need some heat to offset it

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so let's see if the system fires up here CPU initialization is going

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this thing better fire up why is CPU initialization still going

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uh systems up CPU fan speed error that's fine um

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like i had said before uh having some airflow around the socket is definitely

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a good idea um some airflow around the RAM sticks is

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good as well uh so let's have a look at our initial

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temps hey we haven't even had the chiller running

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for very long but i'm expecting them to be pretty good uh

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wait what 52 degrees that doesn't make sense

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i've got water flow right 52 degrees

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i'm finding that very confusing

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the only thing i can think of is if it's grabbing the temperature off of an

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external sensor and then just using an offset

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because the CPU is probably not that cold like that coolant is still close to

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room temperature okay so for our next trick

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i'm dropping a thermal probe into the liquid and finding out how cold it is

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that we're running so far so about we're at about 9.2 degrees celsius

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and let's see what ida has to say about our temps here

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ah that's more like it

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so yes that CPU temperature was

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reporting with some sort of offset near the socket which as you guys might

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remember we insulated

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so the CPU diode

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at somewhere between 10 and 20 degrees

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that actually makes sense because you should be a little bit over the

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temperature of the coolant while you're at idle okay rancho is over and whoa

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it's working fantastic

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oh there we go

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minus 20 degrees on the coolant

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minus 17 degrees

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on the CPU freaking

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fantastic we're looking at CPU diode temps

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that are under the ambient temperature of this room

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by seven degrees

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seven degrees less than the ambient in this room

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freaking unreal

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so it's frosted over anywhere where the evaporator is uh

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exposed to the air which makes perfect sense

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you guys can actually get a pretty good look at what our uninsulated tubing

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would look like check that out remember this tubing is

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black you guys remember that black tubing

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it's just completely snowy and then this stuff insulates better

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than that stuff for sure but you see the pump would also have to be uh insulated

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here check that out cool right

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okay so by this point you guys are probably wondering

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why why

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well believe it or not this was at one point in time anyway a fairly popular

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way to get sub-zero temperatures relatively speaking and the reason for

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that is that compared to direct die

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cooling with an evaporator this doesn't have to be custom done so

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you don't need any hvac certifications you just go buy a window ac unit strip

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it down and do this compared to that it's much cheaper and

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obviously compared to regular water cooling you're able to get much much

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better results so even now that it's been running for about five minutes we

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are still sitting at less than 30 degrees on the diode something that is

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going to get us significantly

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better temperatures which could lead to better overclocking

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now as for the disadvantages those i hope are fairly obvious disadvantage

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number one is that to do this properly is extremely time consuming and um

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yeah very few people end up doing that everyone kind of does it pretty janky

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disadvantage number two is it's extraordinarily difficult to relocate

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your pc because this thing is exactly

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as heavy as it looks disadvantage number three it's loud like

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check this out i'm putting my mic into the thing here

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super loud and disadvantage number four

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is it can in some cases result in dead

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hardware if you're not careful about your insulation now for my part i'm

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actually expecting like as quickly as i did that i'm expecting my insulation job

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to have held up just fine i'm going to shut this baby down and we'll take a look at it here though so yeah we're

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doing just fine here this is barely even cold to the touch out to the very edges

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of our insulation here the problem is just that it's easy to make a mistake

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and anything worth sub-zero cooling is probably expensive and high-end so

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unless you can afford to lose that stuff you might not want to take the risk and

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the last drawbacks a lot of drawbacks taken a long time is power consumption

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and heat so in addition to your system you have to run an air conditioner that

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not only doesn't cool down your room

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it actually spits massive amounts of heat into your room

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so you can air condition your air conditioner so

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you can air condition while you're air conditioned so

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thank you very much ASUS for sponsoring

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this fun little video where i showed you guys

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a whole lot of what not to do thanks you guys for watching if you disliked it you

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can hit that button but if you liked it hit like get subscribed maybe consider

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checking out where to buy the stuff we featured at the link in the video description zenith extreme we've been

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really happy with this board for our threadripper testing also link down there is our merch storage has cool

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shirts like this one as well as our community forum which you should totally

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join