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    Please do not post a support request without first reading and following the advice in https://retropie.org.uk/forum/topic/3/read-this-first

    Pi 4 : Powerd by PC Question

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    pi 4
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    • E
      escc1986
      last edited by

      I'm really happy to say , that I got my Pi 4 today in the mail and I'm excited

      Unfortunately I didn't do my homework and didn't order a proper power adapter for it

      So I just have a USB C connected to the computer and to the Pi 4 to power it on and just loading roms on it

      Is it a bad move to keep it powerd by PC ?

      Could I damage it if left for hours ?

      I just ordered a power adapter so should. Be expecting that soon

      1 Reply Last reply Reply Quote 0
      • YFZdudeY
        YFZdude
        last edited by YFZdude

        I think you will run into trouble if you don't get a proper power supply for it.
        The official power supply for a Pi 4 supplies up to 3.0 Amps.

        See the official page:
        https://www.raspberrypi.org/products/raspberry-pi-4-model-b/specifications/

        • A good quality 2.5A power supply can be used if downstream USB peripherals consume less than 500mA in total.

        EDIT: According to what I found on Wikipedia, USB Power Delivery seems to top out around 2.0 to 3.0 Amps for 5V devices depending on what revision your hardware supports. I think dedicated power supplies are much safer.

        If you search the forums a bit, you will find posts where people experience all sorts of odd behavior when their cheaper power supplies couldn't put quite enough power into the Pi.

        E 1 Reply Last reply Reply Quote 0
        • E
          escc1986 @YFZdude
          last edited by

          @YFZdude

          Very useful information and I very well understand

          Thank you for bringing all that to my attention

          Lucky enough I haven't play any games

          I was mainly planning on , tweaking it , downloading and loading stuff into it meanwhile before i get the proper power adapter

          Thanks again for the info

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