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  1. Hi all, Apologies for the long hiatus. Truthfully, I have been sitting on this for well over a year now and just don't have the motivation. I've decided to release the KiCad files on GitHub. https://github.com/CyberXZT/atx-q630 I have tested the latest revision on a few different board/chassis/psu combinations and haven't run into problems. Nevertheless, I am not an electrical engineer. I take no responsibility for any damage these designs may cause. Use these designs with extreme caution. I am also not actively maintaining this. Questions/feedback may go unanswere
  2. I modified and used Elliot's script and his RezHex tool to copy a modified (without the 68k stuff) 7.6.1 system file onto my PowerBook 1400. I have been using it for a few days with a 128GB SD card and have only run into one issue (which was entirely my fault). The issue was forgetting to copy the 'Text Encoding Converter' extension to the finished install. This led to some applications failing to work properly and pretty quickly resulted in the creation of files without a name field. While I didn't spend much time on it, I wasn't able to use, modify, or delete these files (even wi
  3. I went ahead and did further testing. So far, everything has worked well. The only issue has been the cracked solder joint on the PicoPSU mentioned above. I have tested the adapter with the following hardware: Chassis: 63x 6200 Motherboard: 820-0548-B (63x) 820-0685-B (6200) 820-0751-A (5260) 820-0828-A (5400) ATX PSU: PicoPSU-120 PicoPSU-160-XT Some additional notes: The PicoPSU may not be powerful enough for all workloads. Additionally, the PicoPSU-120 was getting fairly warm during my testing. Th
  4. I can't believe it! My PicoPSU had a cracked solder joint. That's it. That's the problem. The PCB worked this whole time. Ahhhhhh! Thanks for the feedback It is hugely appreciated. This is my first actual PCB :P As for the layout. Ground is actually a plane on both sides of the PCB. Everything else is traces. I'm not to familiar with planes in KiCad but it is definitely something I want to improve on. Here is the layout: If I did everything right, the current layout should allow for the following amperage limits (2oz copper): 3.3V - 6A 5V
  5. Thanks for the schematic! From my understanding, both designs should be functionally the same. Tomorrow, I'll pull out the oscilloscope and check and see if I can find anything obvious there. If not, I'll swap the transistor and see if that makes any difference. I don't believe the resistor to +5V_SB is necessary as there should be an internal pull-up on the PSU. That was, at least, the case on the two PicoPSUs I tested. While I added a footprint for it on my PCB, I haven't populated it.
  6. Maybe somebody here can give me a hand? The only issue I have had is with the soft power circuit. It looks like this: This is probably something stupid simple. So far, I have tested with the following: 2 assembled PCBs Performa 636 Motherboard/PowerMac 6200 Motherboard PicoPSU-120/PicoPSU-160 On one of my PCBs with the P636 motherboard and the PicoPSU-120, the machine does not start. The fan is nudged a moment and stops. All other tested configurations currently work. This has had me stumped for a few weeks and I kind of dropped it until Adrian's vi
  7. I am currently using a picoPSU-160. It works nicely. It 'should' work with a picoPSU-120 however there is currently a compatibility problem that I am trying to work out. There is also the issue of the power supply mounting. The Q630 chassis uses the power supply for structural reinforcement. Originally, I was going to make a 3d printed bracket that fits inside the original PSU chassis but I discovered that there are at least two different PSU cases with very different layouts.
  8. Hi All! I just noticed a link to this thread from Adrian's video. As it turns out, I was actually working on such a thing a few weeks ago. Attached is a picture of it. I've included an optional 3.3V power rail (for 3.3V boards) and optional -12V power (for power supplies that don't offer enough current or are extremely out of spec). This is my first PCB and I am absolutely not an electrical engineer. I have not had the time to test it extensively although I have noticed some compatibility issues with some power supplie
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