I’m beginning to think that the Windows PC that I built in 2015 is ready for retirement (though if Joe Biden can be president at 78, maybe this PC can last until 2029?). In looking at new des…

Why aren’t motherboards mostly USB-C by now?::I’m beginning to think that the Windows PC that I built in 2015 is ready for retirement (though if Joe Biden can be president at 78, maybe this PC can last until 2029?). In looking at new des…

  • NaibofTabr@infosec.pubEnglish
    8·
    1 year ago

    I think power delivery is a concern too. If a motherboard had 4 USB-C ports on it, you know someone would try to plug in 4 USB-C monitors at 100W (20V/5A) each, so 400W going across your IO bus. At that point if your motherboard doesn’t just burn out, and you have a big enough power supply to provide it, you’re still going to have a serious heat problem.

    • Pantsofmagic@lemmy.worldEnglish
      3·
      11 months ago

      Yeah I recently started using a motherboard that has a 6-pin GPU style header for powering the USB-C ports. It limits power delivery capacity if you don’t plug the connector in, but if you do it supports 100W ports.

      • NaibofTabr@infosec.pubEnglish
        2·
        11 months ago

        100W on each port or 100W total output for all 6 ports? I seriously doubt your power supply will deliver 600W on one peripheral cable.

        • Pantsofmagic@lemmy.worldEnglish
          2·
          11 months ago

          No it limits the total amount, but it is reasonable that they added a dedicated power input. I’m guessing we’ll see even more of that on ATX12VO motherboards or similar. Seems like power standards are changing a lot and manufacturers are waiting for things to settle down.

    • lud@lemm.eeEnglish
      31·
      11 months ago

      Don’t support 100W power delivery on all ports then.

      • NaibofTabr@infosec.pubEnglish
        4·
        11 months ago

        I think it’s easy to say this, but harder to actually do in practice. There’s a color code system for USB-A, but a lot of manufacturers didn’t follow it reliably, and most users don’t know what the differences are anyway (I’d certainly have to look up what Yellow and Red are specifically for). You’d have the same problem with trying to mark USB-C ports, and without some easily identifiable marking most users will just expect that a USB-C port is a USB-C port.