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  1.    27 May 2017 #11
    Join Date : Dec 2013
    Sydney, Nova Scotia, Canada
    Posts : 10,438
    Windows 10 IoT

    Quote Originally Posted by Berton View Post
    It does appear that polarity is important. The posted diagram by bobkn at #5 does show + and - for the speaker plug. Looking at the manual for my Gigabyte GA-MA785GPM-UD2H and GA-770T-USB3 boards also shows the polarity for the speaker in the same manner as bobkn's diagram. If a device has been built correctly the red wire is + and the black wire is -. Control/sensor wires such as on fans will be another color such as yellow or white.
    Some things are polarity important, fans , LED indicators, etc. Some aren't, power and reset button for instance. You'll notice though, that they still show a ground for those and the cables usually have a red and black wire. IMHO, more for conventions sake, and to make it easier for the non tech savvy to connect it all up.
      My ComputerSystem Spec
  2.    27 May 2017 #12
    Join Date : Aug 2015
    Posts : 611
    W10 Home 1703

    Quote Originally Posted by alphanumeric View Post

    Anyway, the quick way to sort it out, since its not working now, is to just reverse the plug. If it then works discussion over. If it still doesn't work its either a dead buzzer, of something not right with the motherboard.
    Yep. We need the OP to try this first.
      My ComputerSystem Spec

 
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