Convert ATX Computer Power Supply for USB

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Here's how to convert a power supply from a computer to one you can use yourself, including with USB ports. These power supplies are called ATX power supplies because they follow the ATX standard.

This video was made possible in part by these Patreon supporters:
Mark Peltier
Yojimbo
Printable Science
Robert Büchel

See also:

Making a Servo Controlled Eyeball for Pi Camera 2

Make USB Power Cable

Servo Motor With Raspberry Pi and Maestro board

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OMG someone who can actually deliver a How to video without the constant waffling/verbal diarrhea that most seem to be full of.
Excellent delivery and clear concise information just what I have been looking for will be making mine as soon as all the parts arrive from the east.

kingblade

There's a lot of great videos on this subject, but in my opinion, this is the best one. Thank you for taking the time to record and share your project with all of us who truly appreciate it. You just got another subscriber.
Cheers

critor

So far the best video tutorial on how to Convert ATX Computer Power Supply with USB ports. Very clear and easily understandable even non-techies can do! Keep up the great job!

prof

no bs and fluff, just straight to the point explaining the process with helpful illustrations along the way. appreciate explaining even the dumber stuff I was confused when starting this project without acting like it's all obvious, thanks.

vera

Great delivery and very resourceful use of mostly on-hand items. I don't think people realize how much work goes into organizing all of this and making it so concise and to the point. The USB portion is well-suited to your purpose. I'll problably end up building something that breaks out 12/5/3.3v, but will steer clear of the USB option. There are just to many viariables of what one might want to power with that. Confined to your purpose it's great.

ernieschatz

Hey, I wanted to say thank you and that I'm quite disappointed to see you haven't uploaded in a while. Six years ago you uploaded a video on how to make a little radio transmitter, I don't know how I ended up finding that video originally but it was one of the first real projects I have ever done and seeing something I made work really inspired me. Since then I've really gotten into DIYing and prototyping, on August 18th I'll be starting university for Engineering. I know that when you created that video 6 years ago you probably didn't realize that it would spark something in some random kid but I wanted to say thank you. I hope all is going well for you and every thing is okay.

AJ_FILMS

ive watched a dozen atx ps vids n this is my fav!

thechronic

Cool build. One change I would make is to add a ~2.5A fuser on the 5V line going to the USB board. Without this there is the potential for the full 20A to flow out via the USB port and fry the heck out of whatever is hooked up to it. Remember, USB spec means devices will assume the max they can pull is 500mA, a badly/cheap usb device may rely on the source to cut off past a certain point rather than limit its own current.

JarrodCoombes

Perfect,

Off to the recycling centre to try and get myself a old PC

tonysicily

Excellent video. As others have said, one of, if not the BEST, video on this conversion. All very well explained which is lacking in most other videos.

brian-hall

Great video! To the point and no dragging around like every tutorial video on YouTube! Keep it up! You just got another subscription!!!

PNess-dvty

What I did is put a panel over the fan hole to hold the binding posts and usb connectors. The power supply is 500 watts. But I'm not asking for more than 75 watts ever. It doesn't need a fan. I think it would still shut down if it got too hot. I use it for charging phones and powering a 10 meter radio. I figured this would work because the machine it was in was only pulling 250 watts and the fan barely turned. The fan went bad. So I recycled.

webranger

best ATX conversion video ive seen yet

christopher

That would make a great starter general purpose power supply. Adding in voltage and current regulators would really make it great. Also, voltage and current displays could also be added.

lochinvar