Front audio panel header setup

I always have trouble in putting the right pins of some of the motherboard front audio panel wires, so I made this post to remind me the correct positions of each pins.

In my motherboard audio front panel configuration:

PINS and Signal Name:

1 - PORT 1L              2 - AUD_GND

2 - PORT 1R              4 - PRESENCE # 

5 - PORT 2R              5 - SENSE1_RETURN

7 - SENSE_SEND     8 - KEY

9 - PORT 2L              10 - SENSE2_RETURN

Below is the audio wire in my computer case:

MIC IN

MIC BIAS

GROUND

R OUT

R IN

L OUT

L IN

The following match configuration

PORT 1L - MIC IN (MIC L)

PORT 1R - MIC BIAS (MIC R)

PORT 2R - R OUT

SENSE1_RETURN - R IN

PORT 2L - L OUT (Speaker or L -)

SENSE2_RETURN - L IN (Speaker or L +)

PRESENCE - for HD audio dongles

KEY - not use

SENSE_SEND - used by MB controllers to auto detect if in use

If you find this post helpful, please share to your fellow techs. Thank you.

Posted in: computer front audio panel connectors and wirings