CPU Cooling with BOILING LIQUID 🔥🔥#Helpful Post

so the thing with water cooling is

there's a few different reasons people

do it some do it for performance you

know getting them over clocks some

people do it for looks although that

clearly wasn't the case here and some do

it for silence now here's the thing

though no matter how many radiators you

throw at your system like you could put

like six radiators on this thing you

could take all the fans off and it would

easily dissipate the heat from a CPU in

a graphics card you are still going to

be stuck with at least one moving part

and that's your pump

now sometimes pumps take the form of

like a big standalone piece like this

like with a custom loop while other

times you're gonna have it kind of built

in or integrated into something else so

this a IO from NZXT has the pump built

into the CPU block while others I

believe ek does this for example build

it into the radiator but you're always

gonna have that moving part which is a

point of failure and a source of noise

unless you don't this right here is a

prototype water cooler with no pump how

on earth does that work how well does it

work I guess there's only one way to

find out in there by sitting through

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so I first got turned on to the idea of

pumpless water cooling when I was

reading a post on extreme systems org

that's a blast from the past way back in

2008 so a user by the name of ocz Tony

who worked at you guessed it ocz at the

time was doing some experimentation with

their upcoming CPU water block which I'm

not sure if it ever got released or not

but it's hardly the point

and he posted that he had figured out a

way to use convection just the natural

convection of the heat of the CPU

warming the water causing it to rise up

one tube and then get cooled by the

radiator causing it to fall down the

other tube in order to achieve enough

circulation to get a functional like

custom grade water cooling loop all

without any risk of failing components

and without any noise whatsoever

Tony's approach had a couple of fatal

flaws though so for one thing it wasn't

possible to get a ton of circulation so

modern CPUs like the 18 core one in here

we're gonna have no chance of moving

enough water to carry all that heat away

and number two is that it relied on a

very specific layout of the entire

system so that the convection action

could get started in the first place so

the radiator would absolutely need to be

above the CPU socket and then once

you've started to add multiple heat

sources like you know a graphics card or

something well then life gets really

confusing fortunately there are other

ways to move fluid around inside a

closed system take this for example this

looks like an ordinary PC tower cooler

but inside these heat pipes are tiny

capillaries that allow the coolant to

flow up and down the heat pipe in order

to allow it to transport heat much more

quickly than just solid tubes of metal

would be able to do that's part of what

makes these things so efficient so when

a nutshell then capillary action is the

phenomenon that you would observe if you

took a cup of water and

and something thin like a straw for

example and stuck it in you would

actually see that the water level inside

the straw would rise a little bit even

though the force of gravity is working

against it it's partly caused by surface

tension and it is the exact principle

that our cooler here works on now I only

gave you guys a really brief look at

this before but now we're going to take

a bit of a closer gander so first we've

got a bog-standard radiator I think it's

made I think it's made of aluminum and

then we've got our CPU block here which

looks pretty normal

you've got your flat copper base and

there's only really a couple things

about it that strike me as not ordinary

so one is this little kind of looks like

a full port of some sort that's been

terminated by pinching it shut kind of

like you would do with the heat pipe and

to the fact that the fittings the block

itself everything about this thing is

like soldered shut

rather than using a rings and screws in

order to seal it they they are serious

about keeping whatever's in here inside

but will it work

now this is 10 out of 10 engineering

sample stuff Rajon Tech sent it over but

this is like this is not to be evaluated

for its performance or the packaging or

anything like that this is just a

concept stage device which means that

mounting this is probably not going to

be that simple there's no instructions

so that kind of looks like it goes there

that kind of looks like it goes there

and they and there it really does just

look like cobbled together from scrap

metal they found in the warehouse or

something these thumb screws are just

spacers these are these are thumb screws

well you only live once especially if

you're this poor CPU with my favorite

thing about oh no did it go in the power

supply I'll screw in your power supply

is a bad friggin time one of the nuts

appears to have gone missing well

hopefully we have an alternative nut oh

heck yeah then that's from my test bench

work I was easy I didn't have to go very

far at all we're also gonna need a

couple of cooling fans did they say

something about it needing to be above

try remember yeah now there's something

for sure what so because this process is

heat assistant we're not actually

expecting it to start flowing right away

like how would it do that what would

power it so we're actually waiting for

the heat output from the CPU to move the

water around we're converting heat

energy into mechanical energy but that

means if there's no load on the CPU then

it's gonna take a while for it to get

hot enough down here to begin that

process and then you can see here our

CPU is clearly not putting out a ton of

heat

and that is a hefty copper block on it

so it's gonna take a while for it to

appreciably heat up now that CPU is

pretty toasty at this point you actually

see we're getting some more bubble on

wool we're getting some real bubble

action here there's a big there's a big

bubble look at it go see that it's

actually starting to flow now now what's

interesting is you actually see bubbles

flowing out of both sides now why would

that be so you can see we're getting a

little bit of kind of jerky coolant flow

but CPU temperatures are actually well

within spec it seems to kind of

correspond actually to little bits of

coolant kind of dripping down into the

block so I actually may have recalled

incorrectly this one may rely on some

gravity assistance here so let's go

ahead and provide it so now this is kind

of like having your radiator installed

in the top of your case know as CPU

temps are way down they were up near 90

now they're in this upper 60s and

they're more consistent okay so

theoretically we're all set up properly

ish now you can see that our CPU temps

have settled in at around the low 60s

and that's not great obviously this is

an 8700 K by the way that's not great

for idle temperatures it's not even

doing anything right now but you got to

remember that this doesn't work unless

we add enough heat and it's clearly

working well enough that even though

that's a high idle temperature we're

well within spec so in order to get our

coolant flowing more rapidly and to get

the cooler working better we actually

have to hit it with a load so why don't

we go ahead and do that

turn small FFT 12 3 that's probably

gonna crush this poor thing but let's

give it a shot Wow okay so our temps

shoot up to a hundred degree degrees

basically instantly but what's

interesting is you can see there's a lot

more action down here at the cooler

also gonna want to check out what kind

of clock speed we managed to maintain

throughout this so we're still at 3.7

gigahertz which means we're getting

enough coolant flow that the things not

just like gonna immediately die we hope

now let's have a look at our coolant

flow here

so what's weird is we've actually got

liquid returns on both of these which

would suggest that it's turning to vapor

to move up to this radiator so maybe the

configuration can be tweaked once more

just trying to remember what their

instructions were I could have I could

have looked this up before we started

but what fun would that be sorry I'm

leaving now it's possible that the

design expects the motherboard to be

oriented the way it would in a typical

tower cakes so why don't we go ahead and

do that there we go all right now let's

see how she goes ooh interesting our

temps are down in the high 90s range now

also our speed which had fallen down to

about 3.5 gigahertz is up to three point

six three we're clearly turbo Eng higher

what's weird is that it appears as

though it's operating more like a heat

pipe cooler right now with the thick

tube doing most of both the liquid and

gas movement why use only capillary

action when you can use convection as

well we could tell that all the action

was in our top tube here but the top one

was the thick one so if we were to

change it around and use our skinny one

as the top instead of having those two

forces work against each other you could

hopefully have them work together

we can't use temperatures to

differentiate our orientations here

because they're all going to hit a

hundred degrees in thermal throttle but

what we can see is how far throttles and

this actually throttles a much worse

than our previous configuration now

we're back up to what now we're up to

3.8 gigahertz what is your logic so this

is clearly the hot side and this side is

pretty hot too okay so I gave in I

consulted the materials they sent over

back when they provided this unit and it

appears as though this was the correct

configuration with the small tube on the

bottom the big one on top and the

radiator up above so let's go ahead and

try it one last time so this is the best

result we've gotten so far we've only

got one core that's at a hundred degrees

and we're terming up to about 3.8 mid to

3.8 high gigahertz

that is not a bad result now it's

obviously not a perfect result which is

probably a big part of the reason that

this even though they've shown samples

of it as long as like a year and a half

ago hasn't turned into a commercial

product yet because there's a lot of

fine-tuning to make this work for one

basically endless tuning and tweaking

could be done on the diameter of the

tubes in order to allow for better

coolant flow for another there's all

kinds of different fluids with low

boiling points which is part of what

actually allows this rapid movement that

could be used to charge a system like

this we don't know what they're using

inside I'm sure once they figured out a

formula that works they would hold that

as a very closely guarded trade secret

for another thing

remember how we showed that this whole

system was sealed up well maybe they're

maintaining it at something other than

atmospheric pressure that could also

affect the characteristics of the entire

system so nothing like this is available

from you know any household brand that

you'd recognize

at this point in time but I would say

that this works well enough that there

is still potential for this technology

and I'm personally very excited for the

truly silent water cooler

I mean ignoring that this particular one

has fans on it and that it would be very

difficult to DIY something like this but

details details details oh yeah and the

bubbling does actually make noise you

can probably hear it get access to

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