User`s manual

2-14

MS-7551 Mainboard

Front Panel Audio Connector: JAUD1

This connector allows you to connect the front panel audio and is compliant with

Intel

Front Panel I/O Connectivity Design Guide.

PIN SIGNAL DESCRIPTION

1 AUD_MIC Front panel microphone input signal

2 AUD_GND Ground used by analog audio circuits

3 AUD_MIC_BIAS Microphone power

4 AUD_VCC Filtered +5V used by analog audio circuits

5 AUD_FPOUT_R Right channel audio signal to front panel

6 AUD_RET_R Right channel audio signal return from front panel

7 HP_ON Reserved for future use to control headphone amplifier

8 KEY No pin

9 AUD_FPOUT_L Left channel audio signal to front panel

10 AUD_RET_L Left channel audio signal return from front panel

Pin Definition

JAUD1

TPM Module Connector: JTPM1 (optional)

This connector connects to a TPM (Trusted Platform Module) module (optional). Please

refer to the TPM security platform manual for more details and usages.

Pin Signal Description Pin Signal Description

1 LCLK LPC clock 2 3V dual/3V_STB 3V dual or 3V standby power

3 LRST# LPC reset 4 VCC3 3.3V power

5 LAD0 LPC address & data pin0 6 SIRQ Serial IRQ

7 LAD1 LPC address & data pin1 8 VCC5 5V power

9 LAD2 LPC address & data pin2 10 KEY No pin

11 LAD3 LPC address & data pin3 12 GND Ground

13 LFRAME# LPC Frame 14 GND Ground