Originally posted by cementshoes
On the back of your system you will see two cables that actually route the mic/headphone ports to the front. Simply unplug the mic cable on the back of your sound card and plug your mic in there.
My back mic jack doesn't work, this is the help I got, but I don't get it.
the most common problem is that the microphone is muted in the Windows control panel.
go to start -> run -> "sndvol32" (without quotes)
Options -> properties
check "microphone" -> "ok"
uncheck mute from microphone