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Chapter 2: Motherboard Installation

Connecting Optional Devices

Refer to the following for information on connecting the motherboard optional

devices:

SPK1: Speaker Header

Connect the cable from the PC speaker to the SPK1 header on the motherboard.

F_AUDIO1: Front Panel Audio Header

This header allows the user to install auxiliary front-oriented microphone and line-

out ports for easier access.

Pin Signal

1 +5V

2NC

3GND

4SPKR

Pin Signal Pin Signal

1AUD_MIC 2AUD_GND

3 AUD_MIC_BIAS 4 AUD_VCC

5 AUD_FPOUT_R 6 AUD_RET_R

7HP_ON 8KEY

9 AUD_FPOUT_L 10 AUD_RET_L

Questions and Answers:

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IBM Motherboard Specifications

General