- This coolant right here can drop your CPU and GPU temps
by seven degrees Celsius, or it's a scam.
I actually don't know yet.
The people at Go Chiller
claim that they have a graphene nanoparticle suspension
that is 60% more thermally-conductive
than just normal, everyday water.
So we're gonna test it out,
just like I'm gonna test out this segue to our sponsor.
Thanks to our sponsor, Volta.
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(upbeat electronic dance music)
Graphene was first discovered in 2004, and ever since then,
it's been theorized to be able to do basically everything.
Well, except leave the laboratory.
But for real though, it's a fascinating material,
and it kinda smells like liquor
and permanent markers. (chuckling)
Graphene is basically just graphite,
but instead of having a 3D crystal structure,
it's two-dimensional,
meaning it creates one-atom-thick sheets of carbon atoms
in a hexagonal orientation.
These bonds are incredibly strong.
Graphene is about 200 times stronger than steel,
but this arrangement also means
atoms delocalize their electrons,
meaning they can move around more freely.
These loosey-goosey electrons is why graphene
is such an incredible electrical and thermal conductor.
It's actually the most conductive material
currently in existence.
So, just how conductive?
Well, we have sheets of graphene, right here,
and it has a thermal conductivity
of 1950 watts per meter kelvin.
That is 20 times more than liquid metal.
So, to show you just how thermally-conductive
these graphene sheets are,
I've got a little strip right here,
and if I put it down onto an ice cube,
I can slice into it like butter, using the heat of my hands.
It feels like I'm touching an ice cube right now.
It's so weird.
Can you see it on the thermal camera, Andy?
Yeah, it's so strange.
But these sheets have a problem.
Because of the one-atom thickness,
the thermal conductivity is just one-directional.
So, this direction, this direction, really, really good.
This way, though, through those different sheets, super bad.
So why exactly should this stuff work for cooling your PC?
Wouldn't having a bunch of graphite
clogging up your micro fins be a bit of a problem?
Well, maybe, I guess we're gonna find out
if that is an issue.
But the basic principle is that you have a whole bunch
of very, very small, very highly-conductive bits,
suspended in the liquid.
And so it's kind of like the water goes over the hot bits,
and the graphene rapidly thermally conducts in,
which it then disperses back to the water
as it's traveling between your hot bit and the radiator.
Once you get to the radiator,
it very rapidly dumps all of its heat,
and cools down the water around it,
as it's going back to the CPU.
I guess it's about time that we just empty this out,
and see if it actually works, right?
- [Brandon] Yeah.
- We're gonna empty this guy out.
It has EK's CryoFuel in it.
So that's essentially just water with additives
to prevent moss growing inside of it and stuff.
So, I think it's a pretty good comparison.
Oh, that's heavy. (chuckles)
What do you think the chances are, Brandon,
of me leaving today with my clothing unstained
by either graphite or red dye?
- [Brandon] Two out of 10.
- Two out of 10? Ooh.
Yeah, that's pretty accurate.
Fortunately, EK has an easy drain port,
so, draining and filling the system
should, in theory, be pretty, oh geez.
That's not how that was supposed to go.
Oh, dear. I kind of do need help.
- [Brandon] Andy!
- Nope, we're fine, we're fine. We're doing fine, Brandon.
- What have you done?
- [Brandon] She's bleeding!
- [Andy] Ugh, it smells bad.
- (chuckling) It does smell bad.
I just thought of a technology that we can use.
(quiet upbeat music)
There we go.
It looks like below the drain port, they have a little spot
that allows the water to get into the chassis
instead of out of the chassis.
I would say mostly that's my fault,
but (chuckles) I thought it would work a bit better.
As I was saying,
because we have a fill port and a drain port,
this is going to be exceptionally easy
to (chuckling) blow out.
(quiet upbeat music)
(liquid splashing)
(exhales forcefully)
Maybe we just need several people to blow on it.
So, keep on holding it there. I'm gonna blow.
- Okay.
(liquid splashing)
- [Host] Is it working at all? (spits)
- It kicked a little bit came out.
You sure know how to make a mess here.
- Yeah, it's a specialty of mine.
So in conclusion, the EK Fluid Gaming,
which I said was very easy to drain,
and the short circuit about it, is not.
It's very difficult. (chuckles)
Now, our graphene coolant
should be a lot more thermally-conductive,
but graphene's also
the most electrically-conductive material in existence.
So, (chuckling) that's not ideal for your computer.
I want to see what the resistance actually is.
So across this distance right here, this is distilled water.
So it seems to be somewhere around,
I believe 10 megaohms, is what it's reading.
Come over here to EK's CryoFuel,
two, three-ish, something like that.
So, EK's CryoFuel is actually a lot more conductive
than just distilled water.
And we come over to our graphene solution.
It's about the same as EK's CryoFuel.
I don't know how much I trust these numbers.
I'm gonna call in the engineers. (chuckles)
So yeah, this is exactly what it was doing before.
- And that's the normal fluid? - It started in the same spot.
Yeah, so, well, this is CryoFuel.
- [Tynan] They probably are creating a coating.
- Creating a coating?
Oh, yeah, that would make sense.
- [Tynan] 'Cause they're corrosion inhibitors.
- Yes, okay.
- [Tynan] So as it naturally sits for longer,
it'll build up a coating.
- So, it seems like, in our distilled water,
we put the leads in,
and the resistance stays about the same.
Whereas when we put it in our CryoFuel
or a graphene solution, it starts going up pretty fast.
And we're guessing that's because
of the corrosion inhibitors in here
are slowly coating the leads,
and increasing the resistance between them.
So, that's cool. I just learned something. (chuckles)
Now, another thing that Go Chiller said
is really great about their stuff
is its anti-foaming agent.
So, foam is just terrible for your PC parts
because little bubbles and stuff can form
on the micro fins in your CPU, or in your pump,
and if it gets out of hand in the pump,
it can run dry and kill itself, or it can be less intense,
but just little bubbles appearing in your micro fins,
and lowering the efficiency of your whole loop.
So, I'm interested to check it out.
I have my highly-technical little agitator here.
Normally Linus is good, but he's on vacation, unfortunately.
Now, I tried paintbrushes.
No good. Don't agitate enough.
Tried this right here. Terrible results.
Probably see the security footage of that right now.
(drill buzzes)
(liquid splashes) (container clatters)
But this guy right here's pretty good.
So if we take a look,
(drill buzzing)
there's a lot of bubbles forming right now.
I'm not entirely sure
that we can overcome that with the graphene solution,
but if we can, I'll be impressed.
Oh, now, if I had to guess,
this will be pretty much the same as the water.
(drill buzzing)
Oh! Actually, it's foaming a little bit.
You can kind of see on the top there,
we're getting these bubbles that are forming,
which we weren't really getting with the distilled water.
So that sort of stuff happens in your loop,
and it's gonna be not a great time.
I am curious to see if it'll behave any differently
in our graphene solution.
It's gonna be a bit hard to tell exactly what's going on,
given it's black, but let's give her a go.
(drill buzzing)
It almost seems like it's foaming a bit more.
(chuckles) We're getting a lot of little bubbles,
kind of all over the place.
I would say that was worse.
So, that's not a pass. (chuckles)
Yeah, it's like five minutes later,
and there still are a couple bubbles in this one,
and nothing at all in the CryoFuel.
So I think their anti-foaming agent isn't too good,
but let's chuck her in.
I'm actually excited.
I think this is gonna look friggin' sweet.
That's why I wanted to use this computer
instead of another one.
We could've just built a test bench.
Oh geez. Have you watched "Fullmetal Alchemist?"
- [Brandon] Yes.
- This reminds me of the thing that was bad.
(chuckles) I don't remember what it's called.
This is freaky. (chuckles)
- [Brandon] I know, right?
- And the consistency just isn't quite right.
- [Brandon] It's like a witch's PC.
- Yeah, ooh.
- [Brandon] Oh yeah, that's a bad omen.
- (chuckles) Yeah, I've been marked.
I'm going to be graphene-possessed. I don't know.
I don't even know what, it's shimmering.
It looks like it's alive. It's really odd.
It actually looks like it's infecting the computer.
Okay Brandon, can you give us some slow-mo?
I feel like this is going to be
the strangest-looking pump-pull ever.
(dramatic music)
We're just here in the bios.
I need to change all the fans back to be full speed.
This seriously looks so friggin' cool.
I've seen black liquid in computers before,
but there's somewhere between a texture
and just the void in this that is so sick.
I can't get over it.
So to test this out, we're just doing the two big dirties.
So, FurMark and Prime95, run them both at the same time.
About as brutal as you can be for a computer.
So, just need to record the temperature, 22.4 degrees.
So that is slightly higher than it was before.
And then wait half an hour, and find out how we did.
All right, we're back, half an hour later.
Temperature's gone down in the room, actually, a little bit,
but the temperature has certainly gone up in the PC.
It looks like we're gonna have to refer to the graphs here.
Yeah, sorry, it looks like it did nearly nothing. Frig.
It looks like, in some spots,
it was maybe two degrees lower,
and the room was also a degree hotter when we ran this.
So maybe a max of three degrees difference,
but that's well within the margin of error.
Well, I wasn't happy with our test results.
We were within, what, one, two degrees,
and our test setup was not able to resolve that.
So, here we go. Different test setup.
We're in Linus's office, where we have control of the HVAC.
We have a different motherboard
that the VRMs will not throttle on.
The CPU is pegged at five gigahertz, all cores.
Voltage is locked at 1.4,
and this is gonna be an actually good test.
So, we've got distilled water in here.
We're gonna run this for half an hour,
come back, chuck the graphene in there,
and with any luck, it's cooler.
And we'll know for sure if it works. (chuckles)
I've run this twice now with the distilled water,
and we've gotten 76 degrees max both times,
and the temperature in this room is quite consistent.
We're also seeing 200 watts sustained
for the whole half an hour on the CPU.
So, I'm pretty happy with this.
Let's fill her up with graphene.
- Whoa.
- Heck yeah.
Oh, that's so warm. Feels nice.
Geez, Brandon, why did we not do this in the first place?
- [Brandon] I don't know. This was your idea.
- All right, you are no longer needed.
- Thank you. - You wouldn't have
to fill that complicated system.
- Thank you for your assistance.
- You're welcome.
- [Brandon] That's a way easier fill than we did.
- Yeah, that was super easy. (chuckles)
Oh, we're seeing it again.
The distilled water wasn't doing anything weird,
but this is foaming at the top.
Their anti-foaming agent sucks. (chuckles)
All right, this one's for all the marbles.
0.1 of a degree hotter than at the start of the last test.
Very happy with that.
This test's actually good, so no excuses this time.
So it's been half an hour,
and it does look like that we are one degree cooler
on our CPU with this test setup.
Problem is, we're also one degree cooler in the room.
So, yeah, let's take a look at the logs,
but it's not looking great. (chuckles)
Huh, this might've actually done something.
It's only one or two degrees difference.
At first, it was even more, but it is enough.
If you look at this graph, just,
I think it might've actually done something, Brandon.
- [Brandon] Oh my gosh.
- That's shocking, honestly.
Let's see here, let's go individual core,
and see what they'd, here's core four.
Same thing. It is noticeably lower.
And let's change, just for fun, to our other water file,
since I ran that twice.
It's exactly the same. It is lower.
Well, yeah, I'm pretty glad that I redid our testing,
because this does show an improvement.
It's not massive, but three, four degrees is measurable,
and our test setup that we have here.
So it does do something.
It's not complete snake oil,
and it looks really friggin' cool.
It's legitimately the coolest-looking coolant
I've ever seen.
So, yeah, I like it. I want some more.
Go Chiller, send us some.
Mostly because it looks sick,
but it doesn't hurt your performance,
and maybe improves it, so, awesome.
And you know what's also awesome?
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Well, if you guys liked this video,
then consider getting subscribed,
and maybe check out this video,
where me and Linus build a small form factor PC,
and it's really difficult, bye.