text: if you want  to plug  external speakers to your onboard sound card  then you will have to  use the green output  sound plug  on the back of your computer.  you will find pink thats for microphone..green thats for speakers/headphones //// and blue  thats for line in....  and  even after plugging your speakers  into the  green jack  they dont work.. do the following \n\nfirst check that the speakers are working\n1. check for the power light on the speaker.\n2. if you got any walkman with you  plug the headphone plug of the speakers to it to see if  you get any sound  out of them \n  if  you dont get any sound then probably speakers are  not working..  and if you do.. then look  into your computer.\n\ngo to device  manager and see  that your sound card is installed properly.\n\ngo to control panel  sound devices  and check that  you have selected the right hardware for sound in the hardware selection\n\ngo to  volume control and mmake sure  no output channel is on mute.  \n\nHope this works for ya.\n\nGOOD LUCK\n\nparadiso