Filter
Top Products
5
3.2 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 case.
Pin Assignment for Audio Ports (HDA and AC’97)
Pin
Signal Names
(HDA)
Pin
Signal Names
(AC’97)
1 MIC2 L 1 MIC In
2 AGND 2 GND
3 MIC2 R 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)
1
2
3579
46
10
You can connect either the AC’97 or the HDA connector depending on the model of the
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 audio standards, you may only use
one connector.
3.3 Switch and LED Connectors
Connected to your front panel are LED leads for power and hard disk activity and switch leads
for power and reset. Attach these to the corresponding connectors on your motherboard.
Consult your motherboard manual for specific pin header locations. Polarity (positive and
negative) does not matter for switches. For LEDs, colored wires are positive ( + ). White or
black wires are negative ( – ). If the LED does not light up when the system is powered on,
try reversing the connection. For more information on connecting LEDs to your motherboard,
see your motherboard manual.