Plastic case - DC psu - grounding needed?

Discussion in 'Cases & Case Modding' started by VanGoghComplex, May 2, 2019.

  1. VanGoghComplex

    VanGoghComplex [H]ard|Gawd

    Apr 5, 2016
    I'm printing a little case for a ITX build that will use a PicoPSU.

    As the base will be plastic there won't be a "chassis ground," and since the PicoPSU uses an external brick for AC/DC conversion I won't have an actual path to my mains ground - at least not a normal one through the tray like you'd see in a regular case.

    The motherboard is the only device in this system. Would it be a good idea to try and ground one of the mounting holes on the mobo to the negative terminal on the barrel connector that the DC brick plugs into?
  2. BlueLineSwinger

    BlueLineSwinger Gawd

    Dec 1, 2011
    No, don't worry about it. A metal case doesn't provide any ground path that isn't already handled by the other components.

    Cases aren't metal to provide a ground. A metal case is grounded because it's conductive. Doing so is a precaution/safety measure (and can sometimes help with RF/EMI interference). A non-conductive case, obviously, doesn't need to be grounded and no substitute path is required.
  3. pendragon1

    pendragon1 [H]ardForum Junkie

    Oct 7, 2000
    yup. all of the 12+ raspi at my work are in plastic cases, no problems.