How do I connect an old chassis' front audio panel to a recent MoBo?


  1. Posts : 54
    10
       #1

    How do I connect an old chassis' front audio panel to a recent MoBo?


    Hi!

    I realize I have an option in the bios to change it to AC 97, but even than the pin names don't match and the logical ways to connect don't seem to work. I have peculiarities such as separate ground for MIC.
    Here's what the user manual shows:
    Click image for larger version. 

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    And here are the connectors of the chassis:
    Click image for larger version. 

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    Last edited by avada; 5 Days Ago at 04:01.
      My ComputerSystem Spec


  2. Posts : 529
    Windows 10
       #2

    HPOUT-R --> PORT2 R
    HPOUT R --> PORT1 R
    GROUND --> AGND
    HPOUT-L --> PORT2 L
    HPOUT L --> PORT1 L

    MIC GRD --> AGND
    MIC IN --> MIC2
    MIC POWER --> MIC PWR

    The rest can be left unconnected and the setup will still work .
      My ComputerSystem Spec


  3. Posts : 54
    10
    Thread Starter
       #3

    nIGHTmAYOR said: View Post
    HPOUT-R --> PORT2 R
    HPOUT R --> PORT1 R
    GROUND --> AGND
    HPOUT-L --> PORT2 L
    HPOUT L --> PORT1 L

    MIC GRD --> AGND
    MIC IN --> MIC2
    MIC POWER --> MIC PWR

    The rest can be left unconnected and the setup will still work .
    Hi!
    This is not possible. Port 1L/R are the same as Mic 2/PWR.
    I can select in the bios which to use, HD audio or AC'97
      My ComputerSystem Spec

  4. Plankton's Avatar
    Posts : 1,327
    Windows 10 Pro
       #4

    What is the brand of this"old chassis" .... case? What is the make/model of the new mobo?
      My ComputerSystem Spec


  5. Posts : 54
    10
    Thread Starter
       #5

    Plankton said: View Post
    What is the brand of this"old chassis" .... case? What is the make/model of the new mobo?
    A Foxconn TH-001 chassis and an Asus PRIME B350-PLUS motherboard.

    With one connection it sort of works. But the connection detection doesn't and I only get audio if the layout is not set to 7.1.
    Otherwise I get audio on both the back connector and the front panel.
    The back microphone doesn't works so the microphone might be connected wrongly.
    Otherwise it seems like the bios/driver is bugged.
      My ComputerSystem Spec


  6. Posts : 60
    Windows 10
       #6
      My ComputerSystem Spec



  7. Posts : 54
    10
    Thread Starter
       #7

    Thanks. Though I tried all these. It just works buggily apparently. (Until I figured out it does produce sound if I switch away from 7.1 it seemed to not work at all)

    No clue how to fix it, if it's at all possible. The asus driver wasn't updated for a long time for win7 (8), nor was the Realtek driver, which doesn't even work as "well", since the sound manager gui fails to even start.
      My ComputerSystem Spec


  8. Posts : 529
    Windows 10
       #8

    avada said: View Post
    Hi!
    This is not possible. Port 1L/R are the same as Mic 2/PWR.
    I can select in the bios which to use, HD audio or AC'97

    HPOUT-R --> PORT2 R
    HPOUT R --> PORT1 R
    GROUND --> AGND
    HPOUT-L --> PORT2 L
    HPOUT L --> PORT1 L

    * MIC GRD --> Hardwire to the only AGND pin you have
    MIC IN --> SENSE1_RETUR
    ** MIC POWER --> SENSE2_RETUR


    * Uncover a little metal from both wires and tie them together and connect only one of them

    ** Alternative scenarios in case not working :
    - MIC POWER --> SENSE_SEND
    - or MIC POWER --> NC (No Current and hope SENSE1_RETUR sends enough power)
    - or drop the MIC case and think merry thoughts to yourself

    P.S : According to your mobo pins the audio card is only 4 speakers capable i.e 4.1 , for the setup to achieve more speakers output (ie 6.1+) it will cancel all other input jacks (mic and line) and turn them into speaker jacks regardless of if you have a MIC detected , i suggest you set the driver to stereo output for your MIC to work along
    Last edited by nIGHTmAYOR; 3 Days Ago at 14:35.
      My ComputerSystem Spec


 

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