I know he has a PCjr but I remember it was working so I don't know if he could use one. I would be more than happy to send him one, but for this first batch I want to make sure people who can actually need them are getting them. I'm not even keeping one for myself out of this batch because I know I'll have more later.
If you have more later, then you can send him one, in case his power supply dies(he is testing his new game(Planet x3) on his pcJr) because he is probably using it pretty much every day!
Probably the voltages will be way more stable in the pico psu/new atx psu and with way less ripple, so its probably a good thing to replace even in a working original pc junior psu, keep it but use in the pc jr the pico psu, it would preserve the pc jr way more, and even have way less risk of capacitor damage.
I don't think he even has one. Maybe if you sent him one he would be inclined. Otherwise you're out of luck. The most advice I can give is maybe checking the pinout on the imac sunflower and modifying his design to fit your needs.
power macs g4 used different kinds of psus, not the same kind for each g4, with different kind of connectors specs, and also direct pin adapter, which just takes atx 24 pin connetor and rearranges the wires in a power mac power connector, to match the pinout of the connector, can give some small problems in some machines, so i think that the original powersupply must be reverse egneneed to seome degree to creare a proper and issues free atx adapter that for me would require some power regulation or some logic missing in normal atx units
I you look up your model number you can probably find a psu pin out. But if your iMac has a dead psu it might not be worth it because when psus go they like to take a lot of other parts with them
It's amazing how much the power consumption of gaming-grade personal computers has risen over the years. Computing power too, but at least recently the power consumption has outpaced the performance gains. I mean, the PCjr probably doesn't even use 80 watts, since it was still using a regular old 60hz laminated iron transformer instead of the much higher throughput high freqency switch-mode transformers being used these days inside of ATX power supplies.
I spotted an insignificant but real error in the silkscreen. YBBR means yellow blue blue red. For yellow black black red the letters should be YKKR. Very nice project, for people who own a PCjr I reckon it's pretty much a must-have at one point or another.
Oh, And if you bought the bigger power supply for the Pico would that be enough power to let you use the expansion boards? I was thinking of buying a PCjr.
That's a cool peace of tech! Great job! Also i found out on what my mother board was it was a dual core amd ahtlon 1800 xp board! Very strange on my motherboard I tried doing some research on dual core amd's and there was not alot around on info! Again great job on the power supply!!
You can make the back panel brackets quicker by making a silicone mold and casting resin. Smooth-On Onyx sets up fast enough that several pieces per hour could be cast in one mold.
Damn, I wish i was able to make stuff like that. You would be a god sent to a lot of old part's people cant find if you can make them and sell them. Hook up an xbox 360 and ps3 to standard PC PSU next :O Both and one PSU :D
Is there mechanical drawing for the original board? I kind of want to create a similar PicoPSU version but fits in the whole board size so there won’t be any bracket problem (in fact myidea reuses the original bracket.)
Not really. A newer style PSU would deliver a cleaner power signal than the older ones and generate less heat. The older computer would probably work better and the components last longer than with the clunky original power supply.
With the PicoPSU, don't use the cheapest 12 Volt AC/DC adapter you can find to save some bucks. Cheapo ones have too much ripple that will slowly kill things.
Hey Akbkuku, did you used blender on windows before? If yes did you notice any performance differences? Because my linux hdd died last month, but i can't seem to run a 1080p 60fps nvenq video in blender in windows without lagging, it can only play it back at 21fps even following any performance guides i could find. (i even tried enabling my gtx1060 in blender configurations). But when i installed kubuntu into a old 5400rpm laptop drive, used the default xorg open source driver, and even without messing with any config at all i was able to play it back and edit the same file at 60fps. I can't buy right now a hdd to install my linux back, and i have to give back the hdd to my laptop, so do you know whats wrong here? I have the latest drivers for my 1060, i have a well cooled i5 7500, 8gb of 2x (4gb 2400mhz ram) and a seagate 7200rpm 3tb drive.
I haven't tried it on Windows yet. I know someone with a GTX 970 setup running Windows and I plan on doing a performance comparison on there to see if GPU rendering can be faster on a budget than CPU rendering. I'll probably live boot linux on there as well and run the same tests and get some performance metrics for the OS as well. Are you using proxy files though? I find using 25% proxy files is 100% full FPS on basically any somewhat modern(down to core 2 quad) computer.
AkBKukU I was going to try the proxy files, but i had the idea of testing in linux and saw that in linux i had basically more than 3x the performance. I will try to use the proxy files on windows while i dont get my new linux hdd, i will post here the results.
I tested right now, and 25% proxy worked like a charm. It used only 10% of the cpu and about 20-30%of the gpu at a solid 60fps. I think even 50% would be possible. thx for the help! But i will probably get a linux hdd as soon as possible to install linux into my main pc again.
There is an extremly high pitch noise of the CRT, if you are going to mage video usig PCjr, could you filter it out. PS I'm 18, if you are older you propably won't hear it.
I really thought I had, but I found the problem. I forgot the bootup sound got removed by accident at one point and ended up on it's own audio track. i.imgur.com/d1Jc1Pj.jpg I forgot to put the processing filters on that track. I can hear it, but it's not ear splitting for me like everyone who seems to mention it. I think young people now are more sensitive to it because they didn't grow up with it. Based on all the comments I see about it now, you would think that school kids in computer labs with dozens of CRTs would have been rolling on the floor wincing in pain. But I can tell you from first hand experience that's not what happened, you just tuned it out. I hear it, but I don't notice it. So it's hard for me to actively think the thought "I need to filter this out". I will try to add a step to my work flow in the future where I look over the audio as a render spectrogram before release so it is more obvious when I miss this.
I'm 19 years old, and the CRT whine doesn't really bother me either. I can hear it, but it's easy to ignore. For me, I guess that could be attributable to using a CRT on my PC until about the age of 10. Could also be that I have tinnitus and CRT whine is basically a far quieter sound of about the same frequency...
yup here in england we have security systems that use the same frequency noise to stop kids from hanging around public or private places.the sound makes you feel headachy and sick.... only affects under 20yr olds as they're super susceptible to the sound :)
I am oversensitive to sounds. I made a silent evaporation cooler for my PC just to get rid of fan noise. I know most people don't really care, but as he works with old technology I just wanted to remind him, as it irritates some people. Especially as I know he already did it in his previous videos.
its mainly because the hairs in your ears that let you hear start to become less functional as you age, and thus only younger people can hear it. im 17, and while crt noise isnt painful, its certainly annoying. I used a computer with a crt when i was younger, and i dont remember how annoying it was, but yeah, i can definately hear it. tom scott did a video about the noise, and i think he added a method to remove the noise, but i forget exactly
You're welcome for the PICO PSU idea in the initial video :P. Seriously though, love the work, just happy I could have contributed in some small way. This idea of using ATX power supplies on vintage systems could be a game changer for many vintage computers.
Please post this on vcfed.org and Brutman's PCjr forum (www.brutman.com/forums/). I am sure you will get a fair number of orders from there,. Oh, and the next thing you need to get for that PCjr is a jrIDE so you can add a hard drive :D
Don't delay, buy today.
Wait, wrong channel.
first 3 comments are about rossman, 8-bit guy and LGR
:D
I think LGR might be interested in this, at the very least he could do a video on it to get you some more traction.
For the reason you made it open source, I love it even more. If I ever needed one, I'd order it from you.
Ask The 8-bit Guy, if he wants one!
I know he has a PCjr but I remember it was working so I don't know if he could use one. I would be more than happy to send him one, but for this first batch I want to make sure people who can actually need them are getting them. I'm not even keeping one for myself out of this batch because I know I'll have more later.
If you have more later, then you can send him one, in case his power supply dies(he is testing his new game(Planet x3) on his pcJr) because he is probably using it pretty much every day!
I don't think that david needs a PSU for the PC Jr since he already has one from his donation
Probably the voltages will be way more stable in the pico psu/new atx psu and with way less ripple, so its probably a good thing to replace even in a working original pc junior psu, keep it but use in the pc jr the pico psu, it would preserve the pc jr way more, and even have way less risk of capacitor damage.
try to aks him via email he will most likely at least give a short answer to you, so i think it's worth trying just to let him know
That sweet floppy disk drive sound. Takes me back to my C-64.
Immediate thumbs up from me as no matter how much of a failure the PCjr was it deserves to be preserved.
The adapter arrived today. After 2 minutes of soldering it's working great! This is a really cool design.
I'm really happy to hear that! Did you use a standard ATS PSU or a PicoPSU?
@@TechTangents I have a Pico PSU on order, so a standard power supply at the moment. photos.app.goo.gl/fDffwMNvHzaJmApNA
Cool! It's very rewarding to see someone getting use out of something I designed!
Awesome that you made the items to purchase (with kit/pre-assembled) *and* open sourced them. :)
I absolutely love modern fixes for old machines. Nice work.
Nice work! Going open source also reduces the "bus factor"; the factor that ends or stalls a project when someone gets hit by a bus. ;)
There is something satisfying about being like #256 for this.
Very nice. I will be sharing this with several people.
Gladly bought a kit and received it a couple days ago. Can't wait to see if my PCjr actually works.
Very cool my friends! Simple design, yet super useful.
Next would you do this for iMac G4 “Sunflower” PSU’s replacement, sir?
I don't think he even has one. Maybe if you sent him one he would be inclined. Otherwise you're out of luck. The most advice I can give is maybe checking the pinout on the imac sunflower and modifying his design to fit your needs.
power macs g4 used different kinds of psus, not the same kind for each g4, with different kind of connectors specs, and also direct pin adapter, which just takes atx 24 pin connetor and rearranges the wires in a power mac power connector, to match the pinout of the connector, can give some small problems in some machines, so i think that the original powersupply must be reverse egneneed to seome degree to creare a proper and issues free atx adapter that for me would require some power regulation or some logic missing in normal atx units
I you look up your model number you can probably find a psu pin out. But if your iMac has a dead psu it might not be worth it because when psus go they like to take a lot of other parts with them
It's amazing how much the power consumption of gaming-grade personal computers has risen over the years.
Computing power too, but at least recently the power consumption has outpaced the performance gains.
I mean, the PCjr probably doesn't even use 80 watts, since it was still using a regular old 60hz laminated iron transformer instead of the much higher throughput high freqency switch-mode transformers being used these days inside of ATX power supplies.
These look great. Should be possible to have the board power whatever on the expansion port easily.
PCjr. Another great machine killed by greed. (properietary hardware)
I just ordered it of your site awesome thanks for the parts being available
Awesome! I had one set aside in case they sold out and was going to email you back about it later today. But that works as well!
I didn't think you had one set aside for me thanks
Turned out perfect
I spotted an insignificant but real error in the silkscreen. YBBR means yellow blue blue red. For yellow black black red the letters should be YKKR. Very nice project, for people who own a PCjr I reckon it's pretty much a must-have at one point or another.
Você é um artista!
I apologize. He is an artist!
Way to go to make it open source :-)
Oh, And if you bought the bigger power supply for the Pico would that be enough power to let you use the expansion boards? I was thinking of buying a PCjr.
That's a cool peace of tech! Great job! Also i found out on what my mother board was it was a dual core amd ahtlon 1800 xp board! Very strange on my motherboard I tried doing some research on dual core amd's and there was not alot around on info! Again great job on the power supply!!
You can make the back panel brackets quicker by making a silicone mold and casting resin. Smooth-On Onyx sets up fast enough that several pieces per hour could be cast in one mold.
Damn, I wish i was able to make stuff like that. You would be a god sent to a lot of old part's people cant find if you can make them and sell them. Hook up an xbox 360 and ps3 to standard PC PSU next :O Both and one PSU :D
Very well done 🤓
This is very important, like
I never understood why anyone wouldn’t want to buy a kit version if available. It’s not only cheaper, it’s more fun.
uuuuu, great!
Awesome video as always
Is there mechanical drawing for the original board? I kind of want to create a similar PicoPSU version but fits in the whole board size so there won’t be any bracket problem (in fact myidea reuses the original bracket.)
Awesome work for an excellent option, I would have needed one of these but was able to find a PCjr power brick for $29 for a PCjr that cost me $40 =/
it's amazing how a new psu can work with a computer thats over 30 years old
Not really. A newer style PSU would deliver a cleaner power signal than the older ones and generate less heat. The older computer would probably work better and the components last longer than with the clunky original power supply.
Joseph Burke dude im saying more like, its really cool that it works in the first place
Can i still get it from somewhere?
Are these still available somewhere? Email sent to the TechTangents website is unanswered.
With the PicoPSU, don't use the cheapest 12 Volt AC/DC adapter you can find to save some bucks. Cheapo ones have too much ripple that will slowly kill things.
Hey Akbkuku, did you used blender on windows before? If yes did you notice any performance differences? Because my linux hdd died last month, but i can't seem to run a 1080p 60fps nvenq video in blender in windows without lagging, it can only play it back at 21fps even following any performance guides i could find. (i even tried enabling my gtx1060 in blender configurations).
But when i installed kubuntu into a old 5400rpm laptop drive, used the default xorg open source driver, and even without messing with any config at all i was able to play it back and edit the same file at 60fps.
I can't buy right now a hdd to install my linux back, and i have to give back the hdd to my laptop, so do you know whats wrong here? I have the latest drivers for my 1060, i have a well cooled i5 7500, 8gb of 2x (4gb 2400mhz ram) and a seagate 7200rpm 3tb drive.
I haven't tried it on Windows yet. I know someone with a GTX 970 setup running Windows and I plan on doing a performance comparison on there to see if GPU rendering can be faster on a budget than CPU rendering. I'll probably live boot linux on there as well and run the same tests and get some performance metrics for the OS as well.
Are you using proxy files though? I find using 25% proxy files is 100% full FPS on basically any somewhat modern(down to core 2 quad) computer.
AkBKukU I was going to try the proxy files, but i had the idea of testing in linux and saw that in linux i had basically more than 3x the performance.
I will try to use the proxy files on windows while i dont get my new linux hdd, i will post here the results.
I tested right now, and 25% proxy worked like a charm. It used only 10% of the cpu and about 20-30%of the gpu at a solid 60fps. I think even 50% would be possible. thx for the help!
But i will probably get a linux hdd as soon as possible to install linux into my main pc again.
Good man!
There is an extremly high pitch noise of the CRT, if you are going to mage video usig PCjr, could you filter it out.
PS I'm 18, if you are older you propably won't hear it.
I really thought I had, but I found the problem. I forgot the bootup sound got removed by accident at one point and ended up on it's own audio track. i.imgur.com/d1Jc1Pj.jpg I forgot to put the processing filters on that track. I can hear it, but it's not ear splitting for me like everyone who seems to mention it. I think young people now are more sensitive to it because they didn't grow up with it. Based on all the comments I see about it now, you would think that school kids in computer labs with dozens of CRTs would have been rolling on the floor wincing in pain. But I can tell you from first hand experience that's not what happened, you just tuned it out. I hear it, but I don't notice it. So it's hard for me to actively think the thought "I need to filter this out". I will try to add a step to my work flow in the future where I look over the audio as a render spectrogram before release so it is more obvious when I miss this.
I'm 19 years old, and the CRT whine doesn't really bother me either. I can hear it, but it's easy to ignore. For me, I guess that could be attributable to using a CRT on my PC until about the age of 10. Could also be that I have tinnitus and CRT whine is basically a far quieter sound of about the same frequency...
yup here in england we have security systems that use the same frequency noise to stop kids from hanging around public or private places.the sound makes you feel headachy and sick.... only affects under 20yr olds as they're super susceptible to the sound :)
I am oversensitive to sounds. I made a silent evaporation cooler for my PC just to get rid of fan noise.
I know most people don't really care, but as he works with old technology I just wanted to remind him, as it irritates some people. Especially as I know he already did it in his previous videos.
its mainly because the hairs in your ears that let you hear start to become less functional as you age, and thus only younger people can hear it. im 17, and while crt noise isnt painful, its certainly annoying. I used a computer with a crt when i was younger, and i dont remember how annoying it was, but yeah, i can definately hear it. tom scott did a video about the noise, and i think he added a method to remove the noise, but i forget exactly
good job... :)
You're welcome for the PICO PSU idea in the initial video :P. Seriously though, love the work, just happy I could have contributed in some small way. This idea of using ATX power supplies on vintage systems could be a game changer for many vintage computers.
Loving the content, man! Definitely have an AvE / Forgotten Weapons vibe going here.
Nice! Do this with a 1200w PSU to get them basic frames
Website source code please! :)
Please post this on vcfed.org and Brutman's PCjr forum (www.brutman.com/forums/). I am sure you will get a fair number of orders from there,.
Oh, and the next thing you need to get for that PCjr is a jrIDE so you can add a hard drive :D
I do plan on posting on those pages, but I want to get more stock in first so I can actually send things out after telling people about them
No offence but the high pitched whine from the crt is pretty distracting
nice 15$ for the psu adaptor, now i just need the rest of the system. uwu and a psu.