Finally, some motherboards provide a pin header that allows connection to a front-mounted audio connector, designed to support stereo audio output (headphone or amplified speakers) and a monochrome microphone input.
The Intel Front Panel Connectivity Guide recommends the following design for front-mounted audio connectors. If your motherboard is a recent design, it’s likely it will be identical, or at least similar.
| Pin | Signal name | Description |
|---|---|---|
| 1 | AUD_MIC | Front Panel Microphone input signal |
| 2 | AUD_GND | Ground used by Analogue Audio Circuits |
| 3 | AUD_MIC_BIAS | Microphone Power |
| 4 | AUD_VCC | Filtered +5 V used by Analogue Audio Circuits |
| 5 | AUD_FPOUT_R | Right Channel Audio signal to Front Panel |
| 6 | AUD_RET_R | Right Channel Audio signal Return from Front Panel |
| 7 | HP_ON | Reserved for future use to control Headphone Amplifier |
| 8 | KEY | No Pin |
| 9 | AUD_FPOUT_L | Left Channel Audio signal to Front Panel |
| 10 | AUD_RET_L | Left Channel Audio signal Return from Front Panel |
- Motherboard Upgrade Reasons
- Motherboard Removal
- Motherboard CPU
- Motherboard Heatsinks
- Motherboard Memory Identification
- Motherboard Memory Installation
- Motherboard Fit
- Motherboard Power
- Motherboard Panel
- Motherboard Fan
- Motherboard USB Ports
- Motherboard FireWire Ports
- Motherboard Audio
- Motherboard Testing
- Motherboard Floppy Connections
- Motherboard IDE Connections
- BIOS Settings
- Motherboards and Win98
- Motherboards and WinXP