3 Pin/Wire PC Fan to USB Conversion
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- Опубліковано 8 лют 2025
- This is my first tutorial! Let me know how I did, and what I can improve on.
This tutorial is about adding a USB connection to a PC fan so that you can run it from any usb port, whether its from a wall outlet or right from your PC. Might even work in your car!
5 year old video and I’m loving how you made it so informative! Yours was the only way I figured out how to do this because none of my wires were colored!
Thanks for the info, 0:55 is what I needed, the plug pinout.
me too
Finally someone who shows the wiring of these pc fans!! Thx bro!! You get a like fo sho! I'm using up here pc fans for a amp rack
Thank you so much. Short and concise and everything I needed to know for cooling my old router.
You can get shrink tubing with a hot melt adhesive in it then it not only provides strength to your solder joint it also waterproofs the connection too. Oh if you run a 12 volt fan on 5 volt your amperage draw goes up as the motor demands more current. You wouldn't want to burn out your USB driver.
Agreed. I'm a complete novice, so please ignore everything I'm about to say if I'm wrong. Isn't there something you can splicing like a fuse or something that will limit how much power the fan can draw?
@@michellekozaczok8201 Very late on this lol, but if you haven't found the answer yet, but yes, a fuse does limit the current allowed through a circuit. It does so by having a conductor that will harmlessly overheat and melt at a specific current, disconnecting the circuit. It saves the circuit's components and prevents fires from them overheating/catching fire.
It takes a bit more sophistication to limit a circuit's current instead of just shutting it off with a fuse or circuit breaker (which is functionally a reusable fuse). A good example of a current limiting circuit is a constant current buck converter that you could find on Amazon.
@@jadenwilliams8424 Thank you.
Great tutorial! :) please make more of these :)
Thank you for simple explanation!😊
I’ve also found out that I need an extra power supply for my 12v silent fans to cool down the laptop.😅 They start spinning at 5v, but they don’t do much.🙃Need more powa!
I did this for my ps2 to put a silent pc fan thanks it worked!
To anyone wonderin fat ps2s use 60mm fan size
Wiring without accidental shorting: The solder and tape are great. Tape alone is dangerous when pulled and the POS & NEG meet. Unofficial option, Offset wire joint. Cut the positive wire 3cm shorter, then connect it. Next, take the neg/ground wire and line it up to the other neg and cut the other shorter and now they are offset. twist and tape or solder. If pulled, they can not touch if pulled out of a tape-held connection. Have you tried this before?
Smart idea with the soldering hood!
非常非常非常感谢你的视频，成功的帮助我把3pin风扇改装成了usb供电。虽然转速慢了不少。
Good Job I like your clamp
Subscriber 100! Hell yeah!
Thanks bro ! Very simple and to the point.
Very simple!Thanks bro!
Nice video
Thanks dude ! :D
Thanks man. Very useful
2025 here! thanks for the video
Well, I did the same to build a usb powered fan out of old case fan just to blow down the temperature of a Router. You don't need cut the wire of 3 pin connector, instead you can strip the USB wire and make them a "pin" to plug in 3 pin connector.
thats what i thought . be easy to put the wires in the fan pin holes
Thnx it worked
Can we do something similar to power the rgb connector of my fan?
On my fan which wires are positive ? The black is obviously negative but there is a a yellow beside the black then a green then a blue
Is there a way to connect the tachometer to the usb to make it show RPM on the computer?
Not directly. You would need some type of device to take the tach signal and convert it into something the computer would understand. A cheap way would be to use something like an Arduino. You can get the Nano for less than $5 but you will need to know how to program it and then wire it up. Maybe something this guy or someone else can do for another tutorial though his channel seams dead.
Hi, can i use any USB cable? For example cables from USB gaming controllers?
Thank, I have a 12v Arctic F14 TC fan. It has a seperate temp sensor cable. However when i connect it to a 12v 2A adapter it just gives a small movement but doesn't spin.. When i give it a nudge by hand so it starts spinning, the engine takes over and spins as it should... Any ideas?
I have only green white and red, so what would you recommend connecting the black wire from the fan to?
White bro, black and white same. Red and yellow same. 🙏🏻
@@kalyanirwasita Wrong.
He also had a bare wire in there, USB cables always have 4 wires.
Red is power. Bare is ground, white is not.
Jacob Wadsworth im work , uptoyou broh...
Its working with my rgb lamp wirr too?
Thanks!
Good one .
Can you to a 4 wire to a 12v power supply please I’m so lost
Just a uses + and - , black and red . If u want turn on the led u have 12v. Because in 5v not enough to turn on the led, just on for fan.
Thanks for the tutorial. I have an LED strip that is connected to a USB. Is it possible to use an old 3pin fan connector and wire the LED to it instead?
im not sure what you asked, but I have 3 pin connector fan and need it to be usb I need to know will this kind of wiring kill my led light on fan???
I know I am 2 years late and you probably have already found a solution or this account is inactive, but yes it would still work. Just make sure that you are soldering the positive with positive and negative with negative. Like the video, you wouldn't do anything with the tachometer, which makes sense. Don't know if you will even see this but if this did help you in a way, yay!
Yes
Is there a way to control the fan speed? If so, I can buy and fix a pretty expensive laptop for cheap.
there is software that will do that for you "Speedfan"
You can use a volume knob from a radio. They are simple variable resistors. These are also called a "pot". (potentiometer)
Do you need to Solder the wires together or can you just wrap in electrical tape once connected?
NVM just read an answer to my question below.
How about with led light
What if you plug it into a phone charger? will it run at maximum speed?
It doesn't matter because usb cables can only have 5 volts, so it can supports 5v fans perfectly. But if you have a 12v fan, the fan speed might be slower.
Please help mine does a half turn them stops
Try that with Noctua))
will it work to a fan with led??
I notice my new AVE Brushless 80mm x 80mm x 10mm spins 2,3x faster at almost to 90 CFM with a class 2 AC/DC power adaptor cable and brick output 9v =250mA output power: 2.25W as a test.I did everything like you did.I now tied up 2 of these fans wires to two USB cable to plug both into my 2007 Inspiron E1505. The 2 12v fans air flow is 30 CFM :( it's good and quieter 27db :)
Cheaper to buy usb fan...
Not if you already have usb cable and old fan.
If you use a lighter for half a second to heat the plastic it pulls right off and you don't have to worry about loosing any wire
I have 3 pin connector fan and need it to be usb, I need to know will this kind of wiring kill my led light on fan???
I just did this, and on my fan, the LEDs are connected to the fans PCB, and not coming from the 3 pin cable. Thus, I can power the fan using USB without killing the LEDs. Im just trying to figure out if I can get more power out of mine right now.
What's the power draw in watts?
12V .38A is the fan rating so 4.56Watts
Running at only 5V, it will draw much less. I would say less than half the rated power.
Can you do 2 fans into just one usb ?
sorry if late but you should be able too issue is if series then if one stops all do and I think parallel they would spin about half speed
Of the three case fan wires, which one is the top wire, which one is positive and which one is earth? My case fan has one of the three wires marked with white dash
i made a this with a 1in fan
every usb cord I cut only has green white and red wires.......
dirtyduty69 Grows same it's annoying
@@yangexue6596 There should be white, red, green, and bare copper then, the bare wire would be the ground
У меня не работает если вставляю в usb port, в чем может быть проблемма?
How can I make it run at full speed. Apparently USB ports will output less than 12V or less than 0.6A. I already burned a fan by using a 12V adapter. I think the Amps were around 0.8, that is why it doesn't work anymore..
Psaikodelik my usb adapter says 5.2 volts at 1 amp so I'm nervous
My computer fan only has two wires
they decided not to code mine.
Work for 12v fan?
That should work but it might reduce the fan speed by over 50%
this is a 12v fan he used
Do me and everyone else a huge favor and either speak up, move the mic closer, get a better mic or all of the above lol. It’s really hard to hear what you’re saying. Thanks and thanks for your video content.
The sell a 12v version of this on amazon www.amazon.com/dp/B07NQG5HC7?ref=myi_title_dp
Let me guess, you all came in to modify you PSU ... am I right?
USB pin have only 5V, and your fan have 12V
Dude use electric tape not Silver tape. Lol
I feel that u r making a surgery..i think it does`t need all that time and tools