21
Pin
Signal Names
(HDA)
Pin
Signal Names
(AC’97)
1
MIC2L
1
MIC In
2
AGND
2
GND
3
MIC2R
3
MIC Power
4
AVCC
4
NC
5
FRO-R
5
Line Out(R)
6
MIC2_JD
6
Line Out(R)
7
F_IO_SEN
7
NC
8
Key (no pin)
8
Key (no pin)
9
FRO-L
9
Line Out(L)
10
LINE2_JD
10
Line Out(L)
How to flip the I/O port from both sides
A. Screw off two screws located on the rear of top cover and slide the cover back toward the rear of the
chassis.
B. Turn over the top case, and unscrew two screws as it shows on the graph.
C. Pull the I/O cable out, and screw it back by rotating 180 degree.
3.3
AC’97 / HD Audio Ports
There is an Intel® standard 10-pin AC’97 connector and an Intel® 10-pin HDA (High Definition Audio)
connector linked to the front panel of the chassis.
You can connect either the AC’97 or the HDA connector, depending on your motherboard. Locate the
internal audio connectors from your motherboard or sound card and connect the corresponding audio
cable. Consult your motherboard or sound card manual for the pin-out positions. Even if your system
supports both standards, only use one connector.
A
B
C
