Audio connectors
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 |
Last Update: Mon May 12th 2003
How to Upgrade Your Motherboard Menu
- Scope
- Reasons for upgrading
- Removing your current motherboard
- Installing your CPU
- Fitting a heat sink
- Identifying suitable memory
- Installing memory
- Fitting the motherboard
- Power connector
- Front panel connectors
- Fan connectors
- USB connectors
- IEEE 1394 connectors
- >> Audio connectors
- Testing the installation
- Floppy drive connection
- IDE drives connection
- BIOS Settings
- Win98SE drivers installation
- Windows XP repair