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RGB fans were pretty cool back in the

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Middle Ages these days we have screens on our fans or least your nand does

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because now all the cool kids they have

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the holographic fan look at this right here this is a Holo fan from coolify and

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it can display a Persistence of vision

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image on your computer let's have a look

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let's see what we have in the Box here we have a little note with the specs

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2600 RPM 52 CFM and 2.75 mm of H2O

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apparently the thing will do 33 DB of noise which is pretty darn good

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especially given that it has no pwm we'll talk about that in a little bit

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also in here of course we have the fan and a couple of fan screws yeah there we

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go that's it some context for these specs they're perfectly fine as for the

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fan design itself it looks like you're a pretty typical cheap RGB fan you find a

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lot of these for like $34 on AliExpress

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or wish but this one right here is a little bit beefier looking and it has

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this bar right down the center how this works is the fan spins and then the

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lights light up in here corresponding to

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where it is around here in the rotation

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and by using maths and Magic you're able to get an image out of that somehow

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let's see if we can just have it work come on do it oh that is cool wow this

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is a loud fan that's unfortunate I feel

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like their 33 DB claim is a bit of a fib

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so Bel just said apparently if you give it less beans it will sound better that

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is not a thing this right here has to spin at 2600 RPM all the time there are

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only two leads going to the motherboard on this which means you have no control

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over the speed whatso ever and there is a good reason for that so see how we

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have this image right here that is based on the RPMs of the fan so if I start

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slowing it down you can see that the image just kind of starts to fall apart

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now kifi does have a new version that's going to come out that will apparently

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go down to about 900 RPM which should be

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way quieter than this but the whole maths of being able to find out like how

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fast it's going and turn that into a image that makes any sense at all is

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pretty difficult cuz again speed changes

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whole thing falls apart Bell says apparently it's way

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quieter at 9 volts which you don't get

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from a computer but I'm willing to try it all right I got my sound level meter

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because I think their specs are horrifically wrong let's just unplug it

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for a second just to make sure that it's not super duper loud in here so this

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system is roughly we can call it 43 DB

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there about now now I can plug in this fan and we'll see just how much louder

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it gets we're looking at about 50 DB a

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lot of the times I'll do it from a foot which is about right here which is 53 DB

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that's 20 DB more than they claim and 20

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DB is a lot that's a shocking amount 3

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DB is a doubling in power 20 is a lot

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it's logarithmic now Belle says that Reddit

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says that at 9 Vols this fan will be a

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lot quieter which makes a fair bit of sense but at the same time I suspect

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that's going to completely ruin our little holographic display but I'm

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willing to give it a try there we go fans working off the bench power supply

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voltage setting nine it's not quite

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stable but I would say that it is good

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enough would you say that's good enough Belle I'd say that's

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working okay so it does stabiliz I guess it does have two

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modes you can run it at 9 volts it

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stabilizes itself can I go

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lower doesn't like eight not a fan of

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eight is it stabilizing no all right 9

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volts does seem better the noise is much more acceptable one more thing we're

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going to test low noise adapter if that gets us 9 volts then we're not in a bad

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spot okay when I got some low noise adapters this is basically just a

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resistor and in your little fan lead we're going to attach that and with any

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luck that will solve our ipping really freaking loud problems the noise is too

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low for it darn well we tried let's put

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them in the system I turned off the system but we still have lus on our CPU

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Cooler very strange even stranger that

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snag your pair today at vy.com shortcircuit or use the link in our

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description to get 15% off your first order at checkout this is a real pain in

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the butt this case was very clearly designed to have the fans on the other

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side and it shows cuz this is

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difficult there we go

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all right prepare yourself for some

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noise oh

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oh hey get it why are

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you oh dear oh man one of them came with

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images on it look at that it's pretty cool so the little POV thing sticks out

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beyond the bounds of the fan and this

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case is not quite made to be in that

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location so uh we're going to make it be

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fine this is where I have to say that the LT screwdriver is not a prying tool

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I'll try this at

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home just turn off the computer oh I have an idea I have an idea I have an

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idea there's these little screws right here I really hope that when I undo

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these screws that just the plastic frame on the outside comes off and not the

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entire thing

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Perfect all right they're all working that was easy and didn't require any

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bending or destruction at all one thing

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you'll notice here is that the motherboard thinks that there are no fans attached because it does not have a

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pwm header or anything like that it's just two wires so we'll have to tell it

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to ignore that all right we are on the shortcircuit phone cuz uh my phone I

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didn't want to use because you need to just sideload this app from a random

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link on a website fantastic and also it

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is named M3 3D float

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view sure so these fans you connect to

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Via Wi-Fi to control them so here we go Hollow this one they

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do apparently have a Windows app coming that would be nice as you can see the

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one in the back that came preconfigured with some cool stuff is doing cool stuff

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it' be nice if we could also do cool stuff on these what are all these

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devices I closed the app and opened it back up and I have all of this random

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stuff none of which I added I was hoping that

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switching over to iPhone would just magically make things work but it's

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not okay I was able to connect to the back fan which is different than these

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ones and I do have control so if you look here I have got a video playing and

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I can hit a thing and a different video starts playing it's actually quite

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responsive how quickly it changes between the stuff so that's cool it

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would be way cooler if I could change any of the ones in the

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front well I don't really know what to say I've been spending the last 20

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minutes trying to get these to work I think I have connected to two of the

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fans but when I tried to send a new video clip to them it's just stuck at

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0% uh I don't really know what to say

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other than this clearly should have been left in the oven quite a bit longer I do

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know that they're working on a version that has the 900 RPM lower limit and pwm

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control which would allow this to be not super freaking loud uh also the

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app doesn't seem to work if there was a

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Windows app that would be pretty cool or any other kind of control like

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USB control would be nice some sort of a controller that would be pretty cool uh

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not using Wi-Fi would be pretty great it's disappointing coolify I was hoping

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for a bit better oh yeah and they're on sale right now for 4

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uh I would wait for Gen 2 if this is the sort of thing that you want unless

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you're a real sucker for punishment and you really really

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really want this right now but what I

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want right now is for you to hit like get subscribed and just have a great old

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day see you later