Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

Im using Windows 7. There are two input/output jack plug front (where the power button is) and back on the PC. The front plugins arent working (no sounds) while on the back works. I want the front to be working, what to do?

share|improve this question
It would be helpful if you included the make/model of PC that you are using, if it is home built, include the motherboard, soundcard and case make/model – Tog May 10 '12 at 9:07

Front audio connectors are typically

  • headphone output
  • microphone input

As you may know, you should not connect speakers, powered speakers or a normal amplifier to a headphone output because these expect different signal levels.

Read audio connectors are typically different signal levels and impedances from front connectors

  • line out
  • line in
  • speakers out
    • left front
    • right front
    • etc

Sometimes they include

  • microphone in

As you know, you must match devices to signal levels and impedances expected by each of these. For example, connecting a microphone to line-in will result in inaudible or very weak recording levels.

share|improve this answer
yes, they are headphone and microphone – John Smith May 11 '12 at 7:20

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.