Duet3D Logo

    Duet3D

    • Register
    • Login
    • Search
    • Categories
    • Tags
    • Documentation
    • Order

    ATX PSU has 5.2v output, is it safe to use?

    Duet Hardware and wiring
    3
    3
    414
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
    Reply
    • Reply as topic
    Log in to reply
    This topic has been deleted. Only users with topic management privileges can see it.
    • sesopenko
      sesopenko last edited by

      I am wiring up an atx power supply to a duetwifi. When the ps has its von shorted it's outputting 12v perfectly but the 5v is outputting 5.2v. I'd like to let the duet control the von of the power supply but I feel the 5.2v output is unsafe. It's a name brand, 700w thermal take psu so I'm surprised it's not regulating the 5v properly. Could it be because the 5v sense wire from the PSU isn't connected to anything?

      1 Reply Last reply Reply Quote 0
      • Jbourns
        Jbourns last edited by

        5.2 volts should be well within spec of the board, but david should know more on that than I do.

        1 Reply Last reply Reply Quote 1
        • dc42
          dc42 administrators last edited by

          5.2V is within spec, however there is a risk that the ATX PSU will detect over voltage on the 5V output and shut down. When using an ATX PSU to power a 3D printer you should put a dummy load on the 5V output.

          Duet WiFi hardware designer and firmware engineer
          Please do not ask me for Duet support via PM or email, use the forum
          http://www.escher3d.com, https://miscsolutions.wordpress.com

          1 Reply Last reply Reply Quote 0
          • First post
            Last post
          Unless otherwise noted, all forum content is licensed under CC-BY-SA