Brown for positive with red tape before we do that can we get like a hot glue gun
and just like shmoo up those leaves oh I assume there was a shroud or so I
ain't no shower brother oh yeah well like well like the electrical tape or
something yeah just something so that like okay your fingers there you don't
like we understand why yeah well I mean it says the person to put the black on
the neutral well that's a take oh just like wrap it around the whole thing
it's just electrical tape I wonder if I can do something like this here let me
just let me just do a thing real quick what are you doing I am going like this
so that that won't come off what the problem is not even it coming off it's
someone touching it well yeah how are they gonna touch it through the electrical tape okay there how are you gonna touch it now smart guy yeah
exactly that's my point I mean it's way better than what you did the one safe
place that you can touch you've covered with electrical tape yeah but I it's
also it's like it's in the way of touching the unsafe place see look there
happy now surely we know a bit more about this than what was on the LA
express page a tiny bit tap tap tap tap on our forum originally showed us one of
these and we were just like okay let's buy it that was pretty much the entire
research that's not more Kyle tell me about the controller boards I looked at
this about 20 minutes before we started shooting and we know what some of the
connectors do temperature yes for what good question oh god we had to outdoor
and exhaust well we had to translate that from something in Chinese looking
by outdoor I didn't run this outdoors is outdoor we are assuming it means
ambient I guess and the red one is exhaust of what yeah yeah we don't know
okay this is a tensiometer assuming for fan control but our fan is actually
wired directly into 24 volts so it's going to be running at 100% no matter
what we do so we can probably ignore that one this is communication to what
about what I'm assuming to a temperature controller that it communicates over
UART or some sort of two-line protocol I figured something out okay you got
your compressor here okay you got your condenser right here yep just like you
would for an air conditioning unit but then instead of an evaporator which for
your air conditioner would be another one of these that blows the cold air into
your room you've got a heat exchanger so we take the refrigerant that goes
through one side of the heat exchanger and then we have these two barb fittings
that will take that chilled water and run it to something well you gave away
the keep away the whole fun I mean I guess that was in the intro anyway so
we're gonna cool a computer with it we're gonna cool anything else with it I
don't know like a brassiere who knows what the fix of Brazil what I don't know
are you my well do we want to try and actually turn it on first I mean I would
think so yeah so we're finished with the power supply I know we got to run the
DC lines yes wait how can we run this off these wimpy little whatever if it has
600 watts of cooling capacity there's no way I mean here are thick these cables
oh yeah exactly those are a lot thicker than these where'd you guys get these
wimpy cables the wire drawer we don't have larger stuff right oh my god it's
fine it's fine wait can't we just sacrifice another power cable it's fine
no it's fine it's fine it'll be fine it just gets hot and then it's fine we have
a fleer we can just look at them and be like oh those might catch on fire yeah
if they get too hot we'll just stop but it's gonna be fine yeah it'll be fine it just gets warm that's the definition of not fine when it comes to electrical
wires how how warm it gets before it catches fire you just gotta be under that
also the ignition temperature is really high yeah well like you don't want to
melt the sheet and forget about ignition if it melts and then shorts that's the problem oh my god the fact that I'm the responsible adult here what are you
talking about this is your flippant duct tape solution yeah and you can't touch
the thing did you put that on the minus side yes I know how that thing works I
have no trust apparently before we hook it up we yeah yeah yeah yeah it's hooked
up no we need to plug it in and make sure it's actually on these connectors
there you go it's spaded she checks to make sure I plug into the right no he
did I saw him what I actually hold on what I'm doing is you have to make sure
it's actually out putting 24 volts because there's a trim pot here that if
you do it wrong so now we get to plug in power to see if you plugged it in
correctly it doesn't matter you can leave you can leave one of them and you just
can't all right all right okay in all seriousness before we connect this to
our compressor which for all we know could be very sensitive about its input
voltage I don't know anything about DC compressors we need to verify that our
power supply is actually outputting 24 volts now this is a mean well power
supply and they don't just mean well they actually do well
seriously it's a good power supply brand it has a potentiometer on it that can
adjust the output voltage so by doing a quick checky check here
24.18 volts perfect sounds good to me oh my god it's not going to matter what
are you how much is 24.18 oh but why is it not 24
we haven't been married long enough to squabble like this I think we squabble
like this ever since our interview mate
I mean in fairness to you the assignment we gave you for the interview was very
stupid yeah that was Nick and Alex no that was my
idea was it your idea yeah the water cooled mouse that was your idea yeah
that was dumb we asked our engineers in their interviews to just
brainstorm have a brainstorming session to theorize a product that
you know is stupid but we used to do that is a challenge you know oh you don't
do we now do trial days we just hire them for a day and give them real thank
you for cutting all of this out of there whatever that's interesting it is
interesting it'll be in the Floatplane exclusive yeah hey Floatplane hi so I
can just go for it now we should probably fill this first and get the
pump going oh yeah because you want the evaporator to actually evaporate instead of not just pumping like
referring back around you've got water already wow water you were totally
doing stuff while we were arguing yeah where's the return oh just
straight into the ride yeah yeah where's the pump just below it the pump is in
here it cools nothing perpetual motion cooling machine it cools itself whoa okay hold on hold on hold on hold on
can we just show the people what power supply we're using what happened to
this guy it's from the shipping damage computer oh yes i fixed it with a hammer also what i put a new fit in what brand is this
i don't know i've never heard of this that's fsp fsp is great full of water
and i think we're good to go one less janky thing about our setup is that
instead of just jamming a paperclip into the end of our 24 pin connector
we've got this little jumper block from csonic that
boop we'll turn on our power supply by jump ring the green and the black wires
okay hold on hold on i got this that's so much safer than putting a paperclip there what yeah it is tc well yes it's
it's more professional oh wait wait wait wait oh
oh oh this video uh has good luck editor vibes to it right now
no it's it's gonna be absolutely fantastic time for the moment of truth
our water is at 23 degrees and if this has the kind of cooling capacity that
it advertises that number should go down pretty darn quickly i mean the fan's
not spinning yeah this did not that's a problem
no it's fine it's fine everything's fine i mean there's no d there's no ac here
is it a dc compressor no it's a it's a it's a it's a three phase it's a bldc
wait it takes dc in and then it has an inverter to go back to ac well why would
we go ac to dc then dc to ac that doesn't seem very efficient
uh no you would just go ac in and then convert to dc for your stupid fan
and your ic's no no no no no no no no no no no no your car takes a dc voltage
from your battery and inverts it to ac why doesn't your car just run off ac
well because it runs off of gasoline no you drive an electric car you
bro yeah because they don't make ac batteries no hey these motors are designed to take a dc
and put you invert it and you put it into three phases and it goes the only reason why you have
this is because if you don't have this you had to put this on that so you're saying that this is
it's not the same it's not the same ac thing you can't just say oh that's a it uses a when you
say ac do you mean air conditioning or alternating current you do this on purpose now
and it doesn't you guys are bickering a lot but uh nothing's happened with this besides this chip
should i just start like shorting pins no no please okay i'm gonna short these two pins
you guys are too fun why is there one red led on i think the red led means it has power everything
is fine no it means it has power led zero nice useful because if something if something's gonna
go boom it's gonna go boom now so what i'm doing is i'm doing a very janky method i'm gonna try and
like use a 9k resistor to short the temperature probes to see if it'll turn on okay that was pretty
anticlimactic why does the resistor work instead of just like jumping with metal these are potentially
connectors for thermistors i'm assuming it's thermistors so it's like a temperature sense of
resistor oh like just like a k probe or something this is a thermocouple yeah it's got twisted twisted
pairs of metal right and then they use the um the junction voltage to the ones where like the the
the hotter they get the more resistance they are the more or less resistance they do yeah yeah yeah
so when that happens yeah it would turn on so usually if you're going to use a thermistor
it's average to 10k so 10k at room temperature got it so what i'm trying to do is make it a
lower resistance to hopefully try and turn it on considering i have no friggin clue how this thing
works so pretty much what i volunteered to do just start shorting things yep you're not shorting it
this is not a short a short isn't it basically very short okay well that was anticlimactic
okay so we really actually have no idea i assumed when they called me to set they
actually know what was so i just messing with no we have no idea well hold on hold on like we
gonna go to the park we wanted to do this on camera you think that we didn't google a part
number line i mean anything's possible at this point do you know how much information there is
what i'm trying to do is figure out how the control system works these are color coded so i'm
going to start with that and if i probe the two leads there should be 3.3 voltage that 3.3 volts
yeah well that's a logic voltage now if they're sending it through a voltage divider one of these
are going to connect to a pin on the controller and we just gotta find the pin oh good so if it's
if it is a thermistor then they'll they'll voltage divide it so they'll have the thermistor on one
leg and then they'll have just a regular like a 10k over there and they'll read the voltage from
between them yes right and then when the voltage reaches a certain level they turn on and when it
goes to a different level they turn off right yes makes sense oh yeah that's if that's how it works
so now we go to BP mode and we try and find out where everything goes probably from when it's off
oh that's that's anticlimactic oh oh oh yes
hey i get excited when i do this stuff okay well how the freak does that make sense that's a capacitor
i kind of really want to try just putting a resistor across the potentiometer thing and
seeing what happens it might need both like both like like the comparison between these two it might
need temp sensors and okay all right we're adding power so you just want to basically short yeah i
kind of just want to short the potentiometer thing what's surprising me is the fan's not even turning
on yeah it's kind of weird well why would the fan turn on if the compressor is running because it's
literally like wide straight into the power it comes off of this doesn't it yeah well yeah but
there's no power running to that here's your power leads yeah yeah the the power leads are right here
this is it's different yeah oh okay more than yeah we can short the potentiometer why do we need a
controller at all why can't we just well because if you don't then it just ices up me well i mean
not if we have a thermal load on it i don't really want to start shorting stuff that i don't
have no idea what it does okay so this is calm yes that will probably go to a temperature controller
uh-huh so wouldn't the temperature controller be the thing that sends back and work now signal
yes so then if we short it depends on that it's probably fine it depends if it's a short now signal
as in on off or it's a communication a serial communication protocol i just want to know if
any of them are doing anything 24 volts dc okay so we don't want to short those two so that's a
power pin yep and then everything else is either ground or data of some sort yep okay so now how
do we figure out which one of them is ground go um well first for most i was going to try and check
what this potential mode it does 3.3 volts which is your logic voltage again try and find what ground
you can stick into short mode um and you find a known ground location i'm just a screw uh
i'm not necessarily that these screws aren't necessarily connected i lie they are connected
i mean on a good design they would be connected i i don't assume good designs you see they're not
connected to the the the the ground of the whole system at least well i don't think you're touching
it but okay that was terrible no it's fine i mean well yeah it's fine now but it could have been
terrible oh it's fine now it's fine i've done worse i've done worse so they're connected to each
other because they're connected through this aluminum block but they're not connected to the ground of the system okay no you never touch the ground okay um what do you mean i've got ground
you got ground yeah i did touch the ground mate i'm a hundred percent sure it's the ground anyways
if you touch it well if you touch the ground i need it i still need the ground okay to find the ground
of the pin yeah i'm touching it we're touching ground it's like touching grass but like so in a
you have a power pin and you have a ground pin okay and then you have two other pins which could
be any communication protocol so we could short them no why not it's not going to do anything
like it's it's probably like uart or i2c okay or something like that probably uart because it
probably needs the power and the so should we get in touch with fs thermal i'll give them a call call
fs thermal oh well the second result wait CPU cooler pc water wait this is actually for cooling a
CPU yeah shut up i thought we were just meming on this no guess this is no way this is ground well
they just have the exact same unit a hundred times for different reasons i can i can i can almost
guarantee that if we do something like this and we find the correct combination of resistors to
turn it on what do you mean they've actually been getting in touch with us well why are we guessing
damn it you guys well because we thought that it would just turn on when we gave it power
hi um any english wow amazing um we bought uh one of your chiller module units on aliexpress and
we couldn't find any schematics for the controller board is it possible for us to get um a diagram
of what all of the pinouts are on the on the controller board yeah i have we chat
let me get a bunch of resistors oh my goodness hey some a plus a plus telephone support right
there wait are you still trying to get it to turn on we have support right now okay well like i said
race is seeking it to turn on the quickest you try your method i'll try my method whoever gets it
working first what if you break it then it wasn't working the first place
what's the worst it can happen
i didn't think it did anything it just it's like who has faith in you he's just gonna send us a thing
what thing is he are you talking to me i will okay yeah until that happens i'm gonna try my method
do you know how you need to constantly keep busy you think i'm in any different
how the f*** do you work oh no there's probably resistors that do oh mother oh i hate this thing
already nothing's my fault what are you so excited about i found the pin that something connects to
what i'm trying to okay this is my degree i spend multiple hours looking at boards trying to deconstruct
what they are by probing stuff right it's like what i'm doing is i'm visually building a schematic
of where these pins go so that i might be able to deduce what i need to do to get them to work
what if we visually create a schematic by just downloading the schematic from the manufacturer
because they don't have one you think i would have you think i would be doing this if the
schematic was available it does kind of seem like you're doing it for fun at this point yes thank you
thank you thomas you see how organized our resistors are in crater warehouse look at this
see look at this you see when i'm looking for 10k you see it says 10k right over there so now i know
there's 10k there i'll accept it's not there we're like we're gonna cut that part out the back bones
connect to the front bone okay you see that bone is connected to this bone oh i could have just
followed the traces so that is connected to a transistor why are you connected to a transistor
oh it's a logic level is there some chance that we will need an additional board we do not have
to power this thing there is a non-zero chance that's possible i see i think it's pretty low though
okay do i call the guy again i don't want to be like that but oh okay
okay plus side even if he doesn't answer we can all listen to this song
oh come on that's the sound of a man who's losing a race slightly by less than before
all right well i just got noped so much for the amazing phone support
sounds like a man who's losing a race like why do we always start like these things and then we
have a plan we start so well and then it just avoids into from chaos this is even when this video
was supposed to be chaotic though yeah i don't even think we started with a plan so i don't know
what you're talking about the plan was power it on and be like wow it's cold and then that didn't
happen this is one shot do not miss spaghetti this is the potentiometer that i found
connecting it to the potentiometer port and just spinning it
it didn't do anything man why did i let him off the phone once you're on the phone with support
don't let support off the phone until you've been support oh that's not well i just all i want is
a schematic let's not well he has it new plan i'm gonna get andy to contact support from a
different phone number i think i might know how to turn this on because if i'm wrong what i did was
excuse my chicken scratch but using using probes and my knowledge i went from this lead over here
which i'm thinking is a control lead that goes to the controller and worked my way back to the
microcontroller okay so this is the lead and it goes into a resistor that is over here next to
this big chunky capacitor then it goes into this three pin device which i'm assuming is either a
MOSFET or a transistor and they both have very similar layouts so i was able to find a very equivalent
like part of the internet downloaded the datasheet figured out where the base collector
meter are and was able to draw the circuit that's the transistor which is that little tiny black
thing over there and then that resistor is this resistor over there and then there goes a trace
down to the lead and then there is another resistor somewhere over here that then goes to the microcontroller
so what i'm thinking is if we put voltage like 24 volts on the lead okay it will turn this transistor
on which will ground wait hold on tell you what i'm gonna run but i'm gonna keep my mic pack
and what's gonna happen is when kevin calls me i will film myself we'll have good audio and then i
will get you guys the diagram that you need okay and then if i turn it on before lunch
because we're even right now all right fine yeah we each owe each other lunch so nobody
has no lunch in fact i don't think we've ever gone for lunch to go so i won two because i predicted
two sales oh then you won a power supply guessing one from the six graphics cards and then you won
stubby sales which i don't really know if i have to win yeah win it's an ally was right about
and if you break it you extra lose uh whoops if you break no it's fine what do you mean it's fine
it's fine so what what i think i've done is reverse engineered the control circuit or what i think is
the control circuit i'm going to try and turn it on with a lower voltage just in case i do send it
to narnia i if i put 24 volts it's much more likely to go to narnia than 3.3 so i'm trying to find
a 3 volt a 3.3 volt rail and then we're gonna try from there okay that is 3.3 okay this is spooky
ah i i mostly know what i'm doing
that didn't work darn