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See instruction below: 10 642 97531 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 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) Locate the internal audio connectors from your motherboard or sound card. Consult your motherboard or sound card manual for the pin-out positions. 3.5” Device Installation With the front bezel