Abit IB9 - Internal Audio Connectors; Front Panel Audio Connection Header

1-16 IB9
1.8.4 Internal Audio Connectors
This connector connects to the audio output of internal CD-ROM drive or add-on card.
1.8.5 Front Panel Audio Connection Header
This header provides the front panel connection for HD (High Definition)
Audio, yet for AC’97 Audio CODEC connection, you must carefully check
the pin assignment before connecting from the front panel module. An
incorrect connection may cause malfunction or even damage the
motherboard.
※ Please do not connect the “Ground” cable or “USB VCC” cable
from the front panel module to the Pin 4 “AVCC” of this
header.
Pin
Pin Assignment
(HD AUDIO)
Pin
Pin Assignment
(AC’97 AUDIO)
1 MIC2 L 1 MIC In
2 AGND 2 GND
3 MIC2 R 3 MIC Power
4 AVCC 4NC
5 FRO-R 5 Line Out (R)
6 MIC2_JD 6 NC
7 F_IO_SEN 7 NC
9 FRO-L 9 Line Out (L)
10 LINE2_JD 10 NC