Intel DG41MJ User Manual download pdf (Page 39)

Installing and Replacing Desktop Board Components

Front Panel Audio Header

The front panel audio header shown in Figure 18, A on page 38 supports both Intel HD

Audio and AC’97 Audio. Table 5 shows the pin assignments and

signal names for Intel

HD Audio and Table 6 shows the pin assignments and

signal names for AC’97 Audio.

Table 5. Front Panel Audio Signal Names for Intel HD Audio

Pin Signal Name Pin Signal Name

1 PORT 1L (Microphone) 2 GND

3 PORT 1R (Microphone) 4 PRESENCE#

5 PORT 2R (Headphone) 6 SENSE1_RETURN

7 SENSE_SEND 8 KEY (no pin)

9 PORT 2L (Headphone) 10 SENSE2_RETURN

Table 6. Front Panel Audio Header Signal Names for AC’97 Audio

Pin Signal Name Pin Signal Name

1 MIC 2 AUD_GND

3 MIC_BIAS 4 AUD_GND

5 FP_OUT_R 6 FP_RETURN_R

7 AUD_5V 8 KEY (no pin)

9 FP_OUT_L 10 FP_RETURN_L

Chassis Intrusion Header

Figure 18, B on page 38 shows the location of the chassis intrusion header. This

header can be connected to a mechanical switch on the chassis to detect if the chassis

cover is removed.

Table 7 shows the pin assignments for t

he chassis intrusion header.

Table 7. Chassis Intrusion Header Signal Names

Pin Description

1 Intruder

2 Ground

1 2 ... 34 35 36 37 38 39 40 41 42 43 44 ... 67 68

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Intel DG41MJ User Manual Page 39