User`s manual

3.4 AC’97/HD Audio Ports

Connected to your front I/O panel there is an Intel® standard 10-pin AC’97 connector

and an Intel® 10-pin HDA (High Definition Audio) connector. The pin assignments

for these connectors are as follows:

Pin Assignment for Audio Ports (HDA and AC’97)

You can connect either the AC’97 or the HDA connector, but not both at once, to

your motherboard depending on the spec 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.

3.5 Power Switch / Reset Switch / Hard Disk Drive LED Connectors

Connected to the front of the Skeleton case Frame are LED and switch leads for

power, reset, and HDD LED activity. Attach these to the corresponding connectors

on your motherboard. Consult your motherboard manual for specific pin positions. 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 info on connecting LEDs to your motherboard, see your motherboard manual.

Note: There is no Power LED in this case. The illuminated case fans will turn on when

there is power to the computer.

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)

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