WEBVTT

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oh it's not a fire hazard no this is a firehouse

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actually this is really bad too it's a solid 6 out of 10 firehouse

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in this box is a power supply that can supposedly provide

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3450 watts of power how did they do that you ask

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evidently by bolting two power supplies

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together how on earth are we gonna test a

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3450 watt power supply oh don't worry

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we've got some ideas and it involves putting not one not two nothing not four

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not five but six rtx 3080 is on the line

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so i really really hope this thing doesn't blow up like this segue to our

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sponsor kiwiko kiwiko sends out crates

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that contain hands-on projects for kids and teens to help develop creative

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confidence and problem-solving skills there's something for all ages and all

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interests so learn more at the end of this video or at the link down below

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first of all strictly speaking this is not two power supplies bolted together

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because it only has one input which is actually kind of terrifying there's a

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lot terrifying about this how could you possibly expect to get 3450 watts out of

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one c13 power connector yeah that's a good question how much do i pay for this

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thing 300 canadian do you want to know something that's kind of fun i mean

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other than the like sort of bitcoin logo ripoff yeah do you want to know the

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number one thing that was bought with this at the same time it's got to be a

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mining rack no yes again

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pillow oh uh fire extinguisher this hat

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okay i guess i have to wear it for the rest of the video then right obviously

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wow it's definitely got ample cooling on this bad boy you've got dual 80

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millimeter fans in the front dual 140 millimeter fans on the top and

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actually what looks like a pretty decent amount of heat sink in here it's almost

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like the platform was designed for a considerable amount of power but then

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they just didn't put a lot of it in here yeah do you want to open it up it is two

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power supplies i thought the pcb went all the way acro

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what the [ __ ]

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i always get concerned when companies make up their own certifications 90 plus

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platinum not a thing and if it was it would probably be platinum colored not gold

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which makes me wonder how much of anything else on here is actually real

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it supports 180 to 200 volt ac input

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which makes sense there's no way you'd be i mean you'd blow the circuit before

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you managed to pull 3000 watts out of a 120 volt circuit is it time to open it

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yeah all right let's do it where's my LTT Store screwdriver if you're not

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already make sure you sign up for the wait list because one day this fine man

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will deliver a finished screwdriver oh are you opening up a real power supply

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yeah so this is a 1600i

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you would kind of want two of these to get over 3000 watts yeah kyle's our lead

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creator warehouse engineer and he apparently spent the last few weekends

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learning about power supplies after being put on the spot last time we

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opened up a sketchy power supply so hopefully he's able to provide us a

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little bit more insight this time around we'll see how good his studying skills

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are so kyle you've already opened this right

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uh yes uh be careful yeah yeah yeah this is the part of the

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video where we say don't do this we do

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not recommend opening up any kind of ac

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to dc power supply there are capacitors in here that will store enough power to

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throw you back across the room maybe not quite that much crt tvs yes these maybe

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not quite so much but you could die what it looks like to me is we have a single

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power input that has been simply pigtailed out to two discrete power

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supplies but what i think has happened here is the second power supply only

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contains the bare minimum required to produce 12 volt whereas the primary one

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has all of the other rails that would be required to run a pc so your 3.3 volt

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your 5 volt and that's what all of this componentry that's missing in here

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is doing over here what i have no means to evaluate is whether this is a quality

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12-volt power supply now or a pretty

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junk one i would hazard a guess that at 150 each

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they're not really anything special kyle tell me more i would like you to draw

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your attention to the power switch that's on there and tell me how you

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think that works good god

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okay what does the green on a 24 pin mean well the green on a 24 pin is your

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power on wait it just goes straight to the power switch that's not normal

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yeah what do you think's on the other side of the switch if you were to take a guess what would be on the other side of

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the switch well a switch is normally in a closed position to allow current to

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flow and in an open position does not allow current to flow what would you

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expect to go to one side of the switch a ground and then on the other side you'd

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go the la for the other lively to the board right wait holy sh

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this switch doesn't actually turn off the

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power supply this switch turns on the power that is not how you

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are supposed to do that just to validate that let's have a look at our ax1600

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this should kind of be all you need to know though because this is what a

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quality 1600 watt power supply looks like

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next to a random banggood.com

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3400 watt power supply look at the size of this primary side cap

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holy bananas we've got our live we've got our neutral

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we've got what seems to be a fuse okay so that's basically what you call an

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x-class capacitor it goes across live and neutral live and common

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and then right next to it are two wide class capacitors that go from your line

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to chassis or earth ground it's for emi and without going too turbo node into it

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emi is bad and those help in some way they transform a very ugly voltage into

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a nice cleanish sine wave depending on how many you have and how good quality

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they are oh we're missing uh we're missing one of these boys who was

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supposed to be on the board here well and you just missed the other thing that's missing oh wait what is that

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what's supposed to be here wait is this just bridged what's supposed to be there

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something called a common mode choke wait they just they just soldered wires

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across it yes and that's not a common mode choke i can guarantee that

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from there we go into a standard uh full

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bridge rectifier shout out to our electro boom then we go into just a

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regular smoothing capacitor and then this is pretty interesting it's an ntc

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but it doesn't do anything with temperature it's actually a inrush

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current limiter so it's when you plug this in you don't trip your breaker by

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charging these caps this along with a power mosfet a diode and

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some control circuitry that exists is your active power factor correction okay

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so it has it whether it works remains to

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be seen we can't do anything right now until we take this board

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and re-solder this resistor over here wait what why because it's not connected

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oh my god it's not soldered yeah well how many other things are not soldered i

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i do not know that's the only one i saw

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oh my word the um yeah okay so where will be careful so the ground wire of

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the low side here is connected to this board as well and there's a very sketchy

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heat pad on the bottom that i took off to see what it was and now it won't go

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back on can you poke can you poke it a little for me well it did not well you

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won't be able to find it because it's got solder in it you have it it doesn't have solder in it though it does it's

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just it doesn't have the lead in it oh okay oh my god i don't think either of

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them are through the board no i thought the other one was nope

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through the board doesn't matter as long as it's making connection to the angular

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ring that's good enough yeah okay now well there's there's loose and there's

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like loose with three elbows they're both loose loose okay look neither of

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them are attached at all i didn't break anything

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i broke nothing it was broken

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don't i think we should teamwork this it's really easy to find which holes we're

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targeting because they are this one and this one where there are no legs coming

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through compared to this one and this one which are the other sides and you

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can clearly see the legs coming through the bottom okay uh this one this one

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this one should we do this one for these two yeah we can do the top one first one sec are you pushing it in the hole

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how's your aim i know it i'm okay minnie number one oh

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freak i don't know if i trust my hand so close to Linus and the soldering iron

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i'm fine oh oh oh oh oh i see it yes

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yes yes okay it's crowning

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okay yes oh no the resist is the wrong way around shut up it is not

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in order to know how much the power supply is drawing normally you'd use something like this unfortunately

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those only work for 110 volts so i bought this thing right here wait you

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just put the cable through here

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and then you get a readout sort of yeah but wait how do you get this around the

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cable well that's the sketchy thing that we have to do oh my god you're just

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gonna cut it yeah now viewers i'm sorry that this is what we're doing but there

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is a good reason we're buying cheap crap

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like this because we bought a very expensive tester that's going to be

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arriving soon but not super soon because shortages so we don't want to blow a

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bunch of money on something that we're just going to replace like

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immediately yeah when's that arriving in the middle of the seventh month of the year somebody sent me the date and it

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was like 07 and i didn't convert it to

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names two months just engineering two months

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i don't know if we should even show people this but

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this is what we did for the record don't do this yeah really though a lot

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of the time we say don't do this this is like for realsies do not do this this is

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240 volt then well we spliced in these leads but

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which ones do they go in uh these two these two boys here okay no

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what are you doing what

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okay i'm going to plug this guy in just to find out you don't have the power cable that

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lightness is working on plugged in right no and if you did have it plugged in i

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would be totally safe see that everything insulated

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we grabbed an older x299 platform for this and ASUS figured this was a cool

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way to do m.2s back then yeah i'm not saying that someone accidentally knocked

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it over and had to put it back in with pliers today but uh don't don't hit it

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again please what's broken the border the drive nothing i put it back in with

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pliers okay here's your GPU power connectors

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oh no okay this is scary should we just test

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it like this you know nothing plugged in just to make sure oh yeah we should all

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this thing work let's take a sketchy power supply turn

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it on with no load 209 volts so we're like right smack on

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the 208 volts we're supposed to have in here you might say don't touch it you

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might say this puppy has a lot of energy

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good luck everybody i think the system's gonna oh

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interesting it didn't fire up what what okay maybe we just leave it in the on

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position yeah it's in the on position well let's go ahead and bridge it

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wait wait what the [ __ ] i pressed the power button oh

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those 80 mils those are goers i wonder how much they're fighting with these

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140s for moving airflow around in here

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it works of course it does oh yeah well what do you mean of course it does

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we had to solder a resistor back into it now how much power can it provide 7.2

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watts yes does seem to be working all right let's power this boy up you ready

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i can't i don't know where the switch is here we go

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man that's annoying and loud i am surprised that at idle it is doing

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like 200 watts it's a lot why yes kyle

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we do still have the camino system i'm assuming you agree that we should try to

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power it with this instead of the three 1000 watt power supplies that are in it

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i had logistics take it out of here and hide it i don't know where it is

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i told you i wanted to try it i know so

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i had logistics take it and hide it i don't know where it is

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you dick for sampling

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i'm thinking render samples 10 000

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okay let's hit it hey

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that's more like it 400 watts okay yeah maybe just don't hold that you have

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one piece of electrical tape between you and 208 volts something rattling in

00:12:45.600 --> 00:12:51.600
there let's add some more gpus yeah only 3 000 more to go let's get this power

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supply completely unplugged notice how the system is power oh wait is it not

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powered down what is it doing is it Windows updating where's the graphics

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cards physically going i don't know over the table oh my you're

00:13:00.720 --> 00:13:05.760
just putting them everywhere well they have to be within the reach of this

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which is not that far because they cheaped out on the copper

00:13:07.839 --> 00:13:15.360
okay so our primary goes here then sure yeah that's a good spot oh

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uh do you have some zip ties alex wants to file down the backs of these slots

00:13:17.440 --> 00:13:23.760
here so that we can fit a 16x card in a 1x slot got a handful of these basically

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you just power up this little board there's your 16x slot this usb cable

00:13:26.720 --> 00:13:33.040
just plugs into a little PCIe 1x i don't think these things will do more than gen

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2 speeds but that doesn't matter for what we're doing why doesn't one of us

00:13:34.800 --> 00:13:40.000
do data and the other one do power here i'll

00:13:38.320 --> 00:13:44.320
stand there and look uh you can stand there and look imposing i'm so sorry

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everyone that sent these to us like i'm sure MSI thought that this would be in

00:13:46.240 --> 00:13:50.560
like you know the ultimate gaming pc instead

00:13:49.680 --> 00:13:54.079
of this this is all of our 30 80s in the

00:13:53.040 --> 00:14:00.959
office if the power supply blew these up we would have no more 3080s left what's the

00:13:58.399 --> 00:14:06.000
worst that can happen this power supply has a freaking lot of 8-pin PCIe

00:14:03.279 --> 00:14:09.600
connectors on it so credit for that i know i say i've said this a lot lately

00:14:08.240 --> 00:14:13.440
but i think this is the worst thing we've ever done

00:14:11.600 --> 00:14:18.079
that's the pattern it's this alex character well it's you know you have to

00:14:15.680 --> 00:14:20.880
have variety a lot of people in the what was it called desk made of radiators

00:14:19.519 --> 00:14:24.560
they were like i miss how janky you're visiting michael you don't have to

00:14:22.560 --> 00:14:28.480
one-up your last feature every single time it's time yep shall we bit lunch

00:14:26.959 --> 00:14:32.240
and how much the power is going to be closest without going over oh

00:14:36.240 --> 00:14:41.279
uh unplugged unplugged

00:14:39.360 --> 00:14:44.639
what's up uh we did not do eight pin power for this one

00:14:42.880 --> 00:14:48.320
on a scale of one to ten how much of a fire hazard

00:14:46.160 --> 00:14:52.639
oh it's not a fire hazard oh this is the firehouse yeah that yeah yeah this is

00:14:50.160 --> 00:14:59.560
bad actually this is really bad too oh okay i'd say it's a solid six out of ten

00:14:55.120 --> 00:14:59.560
fire hazards okay we're done

00:15:00.480 --> 00:15:07.519
there we go now all the fans are spinning this is a thing

00:15:05.040 --> 00:15:12.720
motherboards flipping out about having too many PCIe devices and not being able

00:15:09.839 --> 00:15:16.320
to boot up oh

00:15:14.320 --> 00:15:20.079
where's the camino no

00:15:17.680 --> 00:15:24.079
what about we unplug the two that are in the one slots and see what

00:15:22.160 --> 00:15:26.720
happens sure and then we'll go get the camino

00:15:25.279 --> 00:15:29.279
i don't know where the camino is yes you do

00:15:29.279 --> 00:15:36.800
mutiny what i asked for the render server to be

00:15:34.639 --> 00:15:42.160
brought out here and instead i get this yeah it's every 30 80 we have plus one i

00:15:39.680 --> 00:15:45.600
mean plus one well we have seven now oh i found another one

00:15:43.519 --> 00:15:50.320
hit it oh

00:15:46.720 --> 00:15:52.000
okay 550 watts at idle it occurs to me

00:15:50.320 --> 00:15:58.000
we need to redo our guesses we've got an additional card oh yeah oh here we go

00:15:54.240 --> 00:16:00.639
we're going into Windows 918.

00:15:58.000 --> 00:16:05.519
900 watts just to fire up the desktop what i mean this is clearly a high

00:16:02.959 --> 00:16:10.079
octane desktop here holy crap

00:16:07.680 --> 00:16:15.600
wait this is a threadripper pro board yes okay hold on a second now i was

00:16:12.639 --> 00:16:19.279
willing to risk a bunch of rtx 3080s but do you have any idea how hard it is to

00:16:17.440 --> 00:16:22.639
get your hands on thread rippers these days yes

00:16:20.800 --> 00:16:26.720
also what is this boardworth this has got to be like a thousand dollar

00:16:24.000 --> 00:16:31.279
motherboard a 1400 1400 i think the motherboard is the least of

00:16:28.320 --> 00:16:36.880
your problems GPU zero one two three four five and six they're all in here

00:16:33.440 --> 00:16:38.959
holy crap this is an aux power connector

00:16:36.880 --> 00:16:43.519
there's two more aux power connectors and then there's dual eight pins for the

00:16:40.560 --> 00:16:46.160
CPU this thing is ridiculous we have a total

00:16:44.399 --> 00:16:51.199
of 23 a-pin pcies running to stuff uh what

00:16:49.279 --> 00:16:56.560
could go wrong kyle in theory it's isolated so nothing should go wrong if

00:16:53.519 --> 00:16:58.800
the power supply dies but if you if the

00:16:56.560 --> 00:17:04.400
isolation's garbage high voltage goes through and then yeah do the 400 volt

00:17:01.519 --> 00:17:09.039
caps just dump into this or potentially to be clear this can happen what he's

00:17:06.799 --> 00:17:12.959
talking about is not purely hypothetical this is the point where it maybe goes

00:17:10.720 --> 00:17:16.079
pop pop the fad is starting to spread oh whoa there we go

00:17:14.480 --> 00:17:22.319
whoa we got anywhere from

00:17:18.039 --> 00:17:26.160
230 to 300 watts per GPU

00:17:22.319 --> 00:17:31.280
i was way under i think what did i say

00:17:26.160 --> 00:17:34.480
damn i need oh 24 19. no 24 22 24 40.

00:17:31.280 --> 00:17:37.360
i think i went too high yes yes my boys

00:17:34.480 --> 00:17:40.880
i said 2501 i wanted us to i wanted us to break okay wait can we appreciate how

00:17:39.120 --> 00:17:47.840
much heat is coming off this thing can we appreciate that it's still running

00:17:43.440 --> 00:17:47.840
25 20 yes i win

00:17:48.400 --> 00:17:54.080
thank you kyle damn it so does it work

00:17:51.919 --> 00:17:58.960
i mean we haven't made it to 34.50 necessarily but we sure as heck got to

00:17:56.000 --> 00:18:06.000
2500 we also don't know exactly what the efficiency of this is

00:18:02.240 --> 00:18:07.760
so 2500 from the wall sure according to

00:18:06.000 --> 00:18:11.280
this thing but it's clear that we need some more sophisticated equipment in

00:18:09.440 --> 00:18:15.679
order to really put this thing through its paces now tell me

00:18:12.720 --> 00:18:21.120
can our power supply tester do this kind of load yes really so we got the good

00:18:18.320 --> 00:18:26.880
one i got 3 500. so like 50 watts more than what this can

00:18:24.400 --> 00:18:31.360
do is out limit okay we're throwing in the threadripper pro

00:18:28.720 --> 00:18:36.000
we also might just need more RAM how much do you have in 64 32

00:18:34.400 --> 00:18:40.480
we're not saying this thing is good or safe no we're just saying that didn't

00:18:38.640 --> 00:18:43.760
blow up we will tell you in two months yeah yeah maybe three and what we'll

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yeah