As you may already know, we bought a fire truck, which can mean only one
thing. We're going to cool a computer with
it. Obviously, this would have worked a little better if we plumbed up some
water blocks, but here's the rub. A fire truck can reach up to 200 PSI of
pressure. Normal PC water cooling fittings, those are rated for about 8
PSI. But if Jay's video is anything to
go on, that's at 140 PSI.
Oh, we think they might be able to handle a whole lot more. How much? Well,
there's only one way to find out, courtesy of AMD, who sponsored this
video. The Shiptorm sale event is live
now on ltstore.com. You'll get free shipping on
any order over $150 worldwide. So, it's a great time to
pick up a commuter backpack or a scribe driver, a screwdriver, or anything else
you've had your eye on. And we're featuring our lowest price ever on our
magnetic cable management essentials bundle. Go check it out at the link down
below. Woo! Yep, we bought a firetruck.
All right, a pumper to be specific. But
how hard does it pump? Well, we know it
has an 8.3 L Cumins diesel engine, but
these things came in all kinds of configurations, meaning that the exact
power this engine makes, it's kind of hard to say, but somewhere between 240
and 400 horsepower, which is good because under this console is a
1,250 gall per minute pump, which is
perfect because according to some rough maths from Alex, we need at least 240 40
horsepower coming down this drive shaft to run that pump at its rated output.
Now, I know what you're saying down there, typing, "Oh, my RAV 4 makes more
power than that." Well, this diesel engine makes about four times the
torque. Let's put into the context of a PC. A D5 pump makes about 0.03
horsepower, 5.5 PSI, and is able to 6.6
gall per minute. Our fire truck exceeds
those numbers by anywhere from 36 times
to a whopping 8,000 times, which kind of makes sense
when you consider the difference in size, I guess. And as you saw in the
intro, it results in a big difference in
performance in the real world. With that said, as we learned when we built the
maximum air flow PC, there's a law of diminishing returns when you add more
coolant flow. So, we aren't actually 100% certain that our firetruck is going
to meaningfully outperform our D5 here.
I mean, we're pretty sure. We're just not 100% sure. We will soon, though,
once I'm finished hooking this up. To adapt our fire hose to our PC, we've got
this G82 BAT to 1/4in NPT adapter from
Greenline. Shout out Jeff there, by the way. He had a wonderful LT store water
bottle. Oh, that's pretty cool. Yeah, I just entered with a fire hose and he was
like, "Please tell me you're not connecting that to a computer." And then
sold me all the stuff to connect it to a computer. Nice. What a guy. It's easy to
be a good mood when you're always refreshed and
hydrated. ltstore.com. We're ready to go. Well,
pressure gauge. We want to know how much we're actually putting into these
things, right? Oh, and there is one other thing. AMD, our sponsor who made
this video possible, kindly requested that we not unal alive any of their
hardware. So, are we Oh, Oh, but
on the first run, all this stuff is dead anyway.
So, yeah, we'll find out how badly it's going to go here. Hey, AMD, great stuff
though. Shout out AMD. Oh, yeah. Okay.
This is terrifying. I mean, should we should we fire it out of this just to
see what happens before we do that? Okay, that's a regular PC water cooling
pump then. Now for the truck. Oh god, where are my glasses? On the subject of
safety, never do what we did in our last video where we were quickly opening and
closing the shut off valve. The sudden stoppage of flow can cause the pressure
to spike potentially over 10 times the working pressure. Uh this can be helped
with relief valves, but we don't have them. And also in firefighting
situations, they normally don't bother with them because it takes too long to
put it on. Also, we're going to get a bunch of electronics wet. So, we have a
GFCI plug. Yeah. Good job, everyone.
Woo. Okay. Okay. What's the pressure like? Okay. We have about like 70 PSI
coming out of this hose.
Okay. Another safety thing. Note that I like approached with caution. Really
high water pressure can like rip your skin off. 80 PSI probably not so much,
but still. Man, this thing wants to go. She's getting right snaky. Snaky? Yeah.
What would happen if you let go? Do you want me to let go? I don't know. Sure.
It's getting warm. Oh jeez.
Wow. That's pretty funny. It's a good sprinkler system. Why is this water so
hot? Are you noticing this? Feel this.
Oh, wow. Okay, give her more. You want more?
Yeah, I want more. I mean, what are we even here for if we don't do more?
125. Okay, it's going up to like 150 nearly. Okay. Okay. 150. Okay. So,
that's 150. Okay. Well, that's great.
Okay. So, I'm going to close the valve.
Okay. It's all fine. Okay. All right. Drop her down. Okay. Should we have face
shields for this? I think it's fine. 200 PSI is a lot in computer, but hydraulic
lines are like 3,000. That's when it starts actually getting scary. Okay. I'm
just going to be out of line of sight of a fitting. I don't want a fitting in the
teeth, you know. Okay. So, are we at about what the pump was doing before
now? No, it's way more. Oh, that's way more. Okay. So, that's about that's
probably about the pump. Oh my god. Yeah. Nears makes no difference. Zero.
That's like five PSI. So, let's have a look at what would be double computer
pressure. Okay. Yeah. Fine. About like so. Yeah. Doing great. Okay. Let's
double that. Whoa. She's at about 40.
All right. Okay. Okay. She's uh she's
holding. She's holding steady. She's steady, boys. All right. Alex, give me
100. 80.
Wow. Okay, I'm going to start standing back. 90. I'm honestly surprised it still is
just fine. 100. Is she going still? Yeah, it's
fine. It's
working. 125. Okay, we've been up to 125. And
what would you be expecting to show signs of wear here? At this point, I was
expecting the radiator to maybe bulging a bit or some of the fittings to be
leaking. But well, on Jay's system, the reservoir detached from the pump. It was
those acrylic uh threads that went, but
this all seems to be fine. Yeah, besides
all of it just shaking. Well, yeah. Aside from that, full
150. I mean, this tube is a little bit.
And she's rock hard, boys.
The tubes are definitely a bit engorged. I was expecting this to let go by now.
What the hell? Does it have more? has a
lot more.
170 175 200 PSI. Oh man, the fan spinning.
What do you think that is from the pump?
What? The pump I think is generating a bunch of electricity and powering the
fan. What the? They're connected to the same molec.
What the pump's plugged in here? Yeah, it's
powering the pan.
Okay.
Jesus. Right at me. I knew we needed a
blast. Oh, you got it, too. Yeah, I got it.
One of these old bits power compression fittings finally partially let go. Now,
one tricky thing is I didn't anticipate
what this pressure was going to do to the water's temperature. It's getting
hot. Water cooling with the fire hose. Feel it.
Oh, yeah. It's pretty warm. May not be that effective, sir. But that won't stop
us from trying it. Just like AMD won't stop making the world's best gaming
CPUs, now it's time to kick things up a notch with our fully armed and
operational gaming battle station. This thing has a 5800X in it. So very
capable. Not the most modern thing, but yeah, what he said. And we really don't
want to kill it, do we? No. That other system was very successful. But do you
think these more modern, very fancy fittings will hold up the same? See, I
actually have a theory that these more modern fittings might not hold up as
well. Yeah, same. A, this tubing, while
it's really good for preventing evaporation, is actually a little bit
more slick on the outside. And B, I feel
like a lot of water cooling manufacturers have gone away from those
old school bits powers that were just raw, rugged clamping force, and they're
more about the looks. Like, I don't know if this reservoir is going to hold
Corsair. How's that even attached? Here's the thing. Just because our
pressure gauge goes up to 200 PSI doesn't mean that that's where our fire
truck stops. Alex, what'll she do? I think it'll go up to 400. Let me check.
So, we're putting a blast shield in
place. Well, it is
bright. It's just that the blacks are also
bright. Like probably brighter than most other monitors that we use.
We're getting about 46 to 47° on the GPU
and about 6263 on the CPU. Let's see
what happens when we dramatically increase our water flow. This may be the
most pointless thing we've ever done. Are we just leaving this system running
and just swapping the coolant live? I guess so. I mean, the valve is closed on
this. So, theoretically, you just open her and we're good to go for the beans.
Woo! Give me 150. You want one? You want to start at 150? Yeah, cuz I can adjust
it with the valve. How's our tent? Okay. Very high. Oh,
god. Okay, here comes some water,
boys. Okay. All right. We're now at 36°.
Okay. So, temps are good. Okay. So, here's pretty typical water cooling, you
know, flow. Uh well, this is a little on the high side. We're at about uh 10
PSI. Oh my god, why am I back here?
Literally, what is the point of a blast shield if I am behind
it? Okay. All right. There's 50. Oh
jeez. She's leaking. Can I get a zip tie? She's leaking. She's What? She's
leaking. What do you mean she's leaking already? Yeah. What a piece of crap.
Okay, that's at least partially our fault for leaving a plastic fitting in
here. Is that where it leaked? Yeah, from there. Oh, this piece piece of
first gen Corsair water blocks. I
remember calling them out on this and they were like, "No, no, it's really good." And I was like, "No, it's not."
And they were like, "We felt you were very unfair." And I was like, "No, I wasn't. Let's go get the emergency just
in case we need a more hardcore machine machine." We'll let this thing dry out.
It should be fine, by the way. Should be fine. Meet Big Bertha. Oh god, we used a
Corsair block again. Oh jeez, we
did. That might be bad. You can really see that other than that Corsair block,
uh, which might be better. It is a newer one.
Um, this is pretty robust. We're using
pressure rated hose this time. We're using server barbs that are generally
designed to have hose clamps on them. And then we're using Yeah, there you go.
And we're using worm drive hose clamps because working with these ones is kind
of a pain. The best thing about this system, though, is probably going to be
that flow meter. That thing's gonna be
going. There's the new one. And that
looks a fair bit more robust. Oh, my
confidence level just went up 100 PSI. Hey, let me know when you're
ready. We're ready to
slow. This scares me every time. We
pulled out the radiator. Had a little issue there, but now we're good to go.
Oh, we got our flow meter and let's get our screen cap set up and get this thing
running. I feel good about this. On the CPU, we've got an all metal block. So,
that means the screws on the underside are threaded right into metal. And on
the GPU, we've got an acrylic block. But man, this is one of the thuggest looking
acrylic blocks I've ever seen. It's so thick.
We have a different GPU now, so it's not an applesto apples comparison, but this
is a 450 watt GPU, and it's currently running at uh about 60°.
Okay, 100 PSI. Oh my goodness. You can't
even see the blades moving in this flow monitor. It's just a blur. We're at
freaking 35° on the GPU. See, the die on
the GPU is so big that your bottleneck for thermal transfer actually is the
block to the coolant rather than the die to the block. Like you see the CPU
stopped going down. We're at 42. I mean, it went down a little, but we can bring
this GPU down to damn near the ambient temperature just by hooking our PC up to
a truck. That's all you had to do.
Wow, it seems so obvious now.
Woo! Let's go. All right. 150. How we
doing, brother? Is our GPU at 26°?
I had Alex put some fresh water in the tank. This may have thrown our results
off a little bit, but my god, it's working good. And yet, the CPU is still
locked. 33° is not what I would consider lock.
Oh, I mean, yeah, that's fair. That's fair.
Whoa. Is the tubing starting to bulge? Are things leaking? Holy crap. I think
things are leaking. It's like dripping. Where is it leaking?
Oh crap. The GPU block is leaking. Wait, the GPU block?
Yeah. Is it Bode? I think it's Bow,
Alex. Whoa, buddy. Yeah, you can see it.
Yeah, it's bode. I mean, I guess that's what 150 PSI will do for you. At this
point, do you just turn off the system and see what you'll take?
No. The people came here to see it run.
Let's see what temps we can get. 200.
200. It's at 200, boys. Oh my god. The
GPU looks okay now. Wait, it didn't even go down anymore.
At 30C. Yeah, that's probably just the temperature of the water. Yeah, the
temperature is going up. Also, the GPU blocking might have something to do with
it. Oh, I wonder if it's not flowing through the fins as much.
It's probably shortcutting this impinchment jet. That makes sense, dude.
That's crazy. 250. Let's
go. My gauge only goes to 200,
so I'm just going to open her up. Alex says it's at 250. I'm gonna hope this
gauge doesn't blow up.
Oh, it's leaking a lot. What?
Oh
Did you kill the computer? Woo.
Oh wow, she failed hard. Okay, to be
clear, we're not criticizing EK. Not for this anyway. I mean, we were well over
200 PSI. Probably like 230, 235. I didn't have it open all the way yet. And
also like our gauge doesn't go that high anyway. Yeah. So, we're guessing. We're
guessing. We're flying blind. I guess bottom line, it's just a matter of the
materials and surface area, which you know what? That other one that had like
twice as thick acrylic probably would have done better. The issue was just that that car ended up not working. So,
dude, and the metal CPU block didn't give any cares. And this thicker acrylic
flow meter, dude, this thing cared about
nothing. I think part of it is that the screws on this one are secured into
metal into a metal face plate. So, that probably helps quite a lot. Just like it
helps to tell you about our sponsor. I mean, AMD. Oh, yeah. Right. AMD. Hey.
Hey. The AMD CPU did fine and survived
probably. If you guys enjoyed the vibe of this video, you might like the one
where we hooked up an array of uh lithium polymer batteries to this like
bizarre turbine fan. And you might also enjoy checking out our sponsor AMD. Uh
Alex actually, I know, right? Just switched over to the Ryzen AI Max. What
is it? The 395. Max Plus Pro 395. This
thing is sick. It's insane. Like
investment disclosure and framework, but damn, this ebook. Damn, it's so good. Go
AMD.