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CarPC works with NO GROUND!?

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  • CarPC works with NO GROUND!?

    Lately my sound has been clipping, and I wasnt sure why. I checked my audio connections and figured maybe my cheap headunit was having issues...

    Today I went to vaccum my car and I see one of the wires going to my M1-ATX PSU is disconnected completly! What threw me off even more is that the wire was red yet my carputer was currently on and working fine! Turns out it was my ground wire ( For whatever reason I made it red )

    Anyways... Does it make any sense that the carputer would function with absolutely no ground? Apparently it must make some sense because it is running.

    I am going to solder all connections tonight. I never did like those butt connectors.
    B Smoov
    Project Status: 90% Complete

    Next Step: TIVO for Radio

    Ampie Case :: MII10000 Mobo :: M1-ATX PSU :: 512MB RAM :: 2.5" HD, 60GB, 5400rpm, 16MB Buffer :: DWW-700H :: Centrafuse

  • #2
    Is it possible the way you mounted the PC chassis or PSU it was grounded anyways. There should be no way to run the CarPC without a ground.

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    • #3
      yeah - it would all depend on how you have your system hooked up.

      My casing is grounding, and therefore works without the ground - but I have it plugged in anyway.

      You have to remember that the whole car is pracitcally grounded so it is getting its ground connection from another source.

      Not really a big deal.

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      • #4
        car PC was probably grounding through the RCA cables, and through the headunit case = not good!

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        • #5
          I have an ampie case with m1-atx... Sitting on under the passenger seat of the car which is obviously carpeted.

          I suppose the m1 is 'grounded' to the case but the case is not grounded to chasis. Its getting its ground from somewhere -- which I need to fix ASAP. I blew out my rear USB and I bet my poor ground had something to do with it.
          B Smoov
          Project Status: 90% Complete

          Next Step: TIVO for Radio

          Ampie Case :: MII10000 Mobo :: M1-ATX PSU :: 512MB RAM :: 2.5" HD, 60GB, 5400rpm, 16MB Buffer :: DWW-700H :: Centrafuse

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          • #6
            Originally posted by buurin
            Lately my sound has been clipping, and I wasnt sure why. I checked my audio connections and figured maybe my cheap headunit was having issues...
            and
            Originally posted by GuessWhosBack
            car PC was probably grounding through the RCA cables, and through the headunit case = not good!
            2004 Matrix XR A7N8X-VM/400 AMD XP-M 2500+, DS-ATX
            89 Supra Turbo P3 [email protected]/Abit BE6 II, Alpine M-BUS Car2PC.
            Y2K Accord Dell GX150
            RoadRunner is the best FE PERIOD
            EmoRebellion is a SCAMMER

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            • #7
              Originally posted by MatrixPC
              and... this is how I increase my post count
              and
              B Smoov
              Project Status: 90% Complete

              Next Step: TIVO for Radio

              Ampie Case :: MII10000 Mobo :: M1-ATX PSU :: 512MB RAM :: 2.5" HD, 60GB, 5400rpm, 16MB Buffer :: DWW-700H :: Centrafuse

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              • #8
                glad we sorted that out.. HAHA!!

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                • #9
                  Read read read ...... http://www.mp3car.com/vbulletin/showthread.php?t=81507

                  I had the same thing happen to me. As above, you'll find that everything is grounded somehow. Just make sure each item is properly grounded to avoid any future electrical issues.

                  '98 Peugeot 306
                  Project Status: I sold it ages ago!

                  ShutControl

                  The ultimate shutdown control software for laptops.

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