Desktop Boards
Desktop Boards
Front panel audio header pinouts

The front panel audio header on an Intel® Desktop Board lets you connect to a front panel audio module built into a system chassis. This document describes the header pin-out configuration for connecting a chassis with Intel® High Definition Audio (HD Audio) or AC'97 audio.

Note HD Audio headers are pin-compatible with AC'97 chassis and connectors.

For HD Audio front panel modules

Pin Signal Description Pin Signal Description
1 PORT 1L Analog Port 1 - left channel (Microphone) 2 GND Ground
3 PORT 1R Analog Port 1 - right channel (Microphone) 4 PRESENCE# Active low signal that signals BIOS that an Intel® HD Audio dongle is connected to the analog header. PRESENCE# = 0 when an Intel® HD Audio dongle is connected
5 PORT 2R Analog Port 2 - right channel (Headphone) 6 SENSE1_RETURN Jack detection return for front panel (JACK1)
7 SENSE_SEND Jack detection sense line from the Intel® HD Audio CODEC jack detection resistor network 8 KEY No pin
9 PORT 2L Analog Port 2 - left channel (Headphone) 10 SENSE2_RETURN Jack detection return for front panel (JACK2)

For AC97 front panel modules

Pin Signal Description Pin Signal Description
1 MIC Front panel microphone input signal (biased when supporting stereo microphone) 2 AUD_GND Ground used by analog
3 MIC_BIAS Microphone power / 
extra MIC input for stereo microphone support
4 AUD_GND Ground used by analog audio circuits
5 FP_OUT_R Right channel audio signal to front panel (headphone drive capable) 6 FP_RETURN_R Right channel audio signal return from front panel (when headphones unplugged)
7 AUD_5V Filtered +5V used by analog audio circuits 8 KEY No pin
9 FP_OUT_L Left channel audio signal to front panel (headphone drive capable) 10 FP_RETURN_L Left channel audio signal return from front panel (when headphones unplugged)

Related Topic:
Troubleshooting audio issues

This applies to:

Intel® Desktop Board D2500CC
Intel® Desktop Board D2500HN
Intel® Desktop Board D2550DC2
Intel® Desktop Board D2550MUD2
Intel® Desktop Board D2700DC
Intel® Desktop Board D2700MUD
Intel® Desktop Board D410PT
Intel® Desktop Board D425KT
Intel® Desktop Board D510MO
Intel® Desktop Board D525MW
Intel® Desktop Board D5400XS
Intel® Desktop Board D945GSEJT
Intel® Desktop Board DB65AL
Intel® Desktop Board DB75EN
Intel® Desktop Board DB85FL
Intel® Desktop Board DH55HC
Intel® Desktop Board DH55PJ
Intel® Desktop Board DH55TC
Intel® Desktop Board DH57DD
Intel® Desktop Board DH57JG
Intel® Desktop Board DH61AG
Intel® Desktop Board DH61AGL
Intel® Desktop Board DH61BE
Intel® Desktop Board DH61BF
Intel® Desktop Board DH61CR
Intel® Desktop Board DH61DL
Intel® Desktop Board DH61HO
Intel® Desktop Board DH61KVCH
Intel® Desktop Board DH61SA
Intel® Desktop Board DH61SKCH
Intel® Desktop Board DH61WW
Intel® Desktop Board DH61ZE
Intel® Desktop Board DH67BL
Intel® Desktop Board DH67CF
Intel® Desktop Board DH67CL
Intel® Desktop Board DH67GD
Intel® Desktop Board DH67VR
Intel® Desktop Board DH77DF
Intel® Desktop Board DH77EB
Intel® Desktop Board DH77KC
Intel® Desktop Board DH87MC
Intel® Desktop Board DH87RL
Intel® Desktop Board DN2800MT
Intel® Desktop Board DP55KG
Intel® Desktop Board DP55SB
Intel® Desktop Board DP55WB
Intel® Desktop Board DP55WG
Intel® Desktop Board DP67BA
Intel® Desktop Board DP67BG
Intel® Desktop Board DP67DE
Intel® Desktop Board DQ57TM
Intel® Desktop Board DQ57TML
Intel® Desktop Board DQ67EP
Intel® Desktop Board DQ67OW
Intel® Desktop Board DQ67SW
Intel® Desktop Board DQ77CP
Intel® Desktop Board DQ77KB
Intel® Desktop Board DQ77MK
Intel® Desktop Board DQ87PG
Intel® Desktop Board DX58OG
Intel® Desktop Board DX58SO
Intel® Desktop Board DX58SO2
Intel® Desktop Board DX79SI
Intel® Desktop Board DX79SR
Intel® Desktop Board DX79TO
Intel® Desktop Board DZ68BC
Intel® Desktop Board DZ68DB
Intel® Desktop Board DZ68ZV
Intel® Desktop Board DZ75ML-45K
Intel® Desktop Board DZ77BH-55K
Intel® Desktop Board DZ77GA-70K
Intel® Desktop Board DZ77RE-75K
Intel® Desktop Board DZ77SL-50K
Intel® Desktop Board DZ87KLT-75K

Solution ID: CS-015851
Last Modified: 13-Nov-2013
Date Created: 22-Sep-2004
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