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Front panel audio connecting to mobo

Tags:
  • Connection
  • Audio
  • Front Panel
  • Motherboards
Last response: in Motherboards
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23 July 2013 19:18:29

I have an Asus P8B 75-M LX motherboard. I want to connect my front panel audio to it, but the pins I have do not match the ones described in the manual. What I have is a 2pin S-L, a 2pin S-R, a 1pin MIC BIAS, and a 1-1pin MIC IN and GND (attached together) labeled connectors. And here is a link to my mobo's user manual: http://imageshack.us/f/194/jc38.jpg/ this is completely different! What do I do?
Thanks!

More about : front panel audio connecting mobo

a c 580 V Motherboard
23 July 2013 23:27:57

Your audio is the AC'97 type, also you need download the "Front panel audio header pinouts" from intel for reference.
http://www.intel.com/support/motherboards/desktop/sb/cs...

Now you need connect; (AC'97)
1) 1pin MIC IN to the #1 pin (in your MB is the MIC2).
2) 1pin MIC BIAS to the #3 pin (MICPWR).
3) 2pin S-L to the #9/#10 pins (line out L).
4) 2pin S-R to the #5/#6 pins (line out R).
5) GND to the #2/#4 pins.
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24 July 2013 15:38:47

cin19 said:
Your audio is the AC'97 type, also you need download the "Front panel audio header pinouts" from intel for reference.
http://www.intel.com/support/motherboards/desktop/sb/cs...

Now you need connect; (AC'97)
1) 1pin MIC IN to the #1 pin (in your MB is the MIC2).
2) 1pin MIC BIAS to the #3 pin (MICPWR).
3) 2pin S-L to the #9/#10 pins (line out L).
4) 2pin S-R to the #5/#6 pins (line out R).
5) GND to the #2/#4 pins.


Thanks for the early reply! However, I connected everything as you described, and yet, my PC does not seem to recognize anything plugged into the jacks. Also, I only have 1 pin GND, so I can only connect it to #2 (it's attached to the MIC IN pin, which is #3, so no problem - in theory at least), and you described 2 pin GND. The reference shows only 1 pin GND too though.
Does the 2 pin S-L and S-R's orientation matters? Which pin goes where? I tried both ways, still nothing....

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a c 580 V Motherboard
24 July 2013 17:49:41

If you have only one pin for the GND then only connect to the #2, plug MIC IN to the #1. Sorry I were misunderstandng.

You need plug MIC BIAS to the #3 which is for the power. If you don't plug in it with the MIC BIAS then you don't power the audio so that is nothing happened.

For the S-L/S-R you need try the orientation because one is audio signal to front panel and other is audio signal return from front panel , because I don't see those connector.
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24 July 2013 18:09:13

cin19 said:
If you have only one pin for the GND then only connect to the #2, plug MIC IN to the #1. Sorry I were misunderstandng.

You need plug MIC BIAS to the #3 which is for the power. If you don't plug in it with the MIC BIAS then you don't power the audio so that is nothing happened.

For the S-L/S-R you need try the orientation because one is audio signal to front panel and other is audio signal return from front panel , because I don't see those connector.


MIC BIAS was always in #3, yet nothing. If the orientation on S-L/S-R isn't right, I get no signal at all?
If I posted a picture with the cables so you can see their colors, would that make things better?:D  (-update- I see now that the 2 cables in S-L are both white, and S-R's are both red, so i guess not...:/)
And btw I needed to set up RC'97 in the BIOS, so it wouldn't go for HD audio, but I did that already.

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Best solution

a c 580 V Motherboard
24 July 2013 18:48:52

I found one more for the connection, I think it is right.

You have to check your audio software for the settings, sometimes you have to disable the rear speakers to use the front. Make sure you disable the HD audio in the BIOS. (double check)

Also check the other Forum too, hope that will be help. http://www.erodov.com/forums/help-how-connect-front-pan...
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