Intel BLKDH67GDB3, G13841-001 Front Panel Audio Header, Ieee 1394a Header Signal Names

Installing and Replacing Desktop Board Components

Front Panel Audio Header

The front panel audio header shown in Figure 20, A supports both Intel High Definition (HD) Audio and AC ’97 Audio.

Table 5 shows the pin assignments and signal names for 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
1	PORT 1L	(Microphone)
3	PORT 1R	(Microphone)
5	PORT 2R	(Headphone)
7	SENSE_SEND
9	PORT 2L	(Headphone)

Pin	Signal Name
2	GND
4	PRESENCE#

6SENSE1_RETURN

8KEY (no pin)

10SENSE2_RETURN

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

Pin	Signal Name
1	MIC
3	MIC_BIAS

5FP_OUT_R

7No connect

9FP_OUT_L

Pin	Signal Name
2	AUD_GND
4	PRESENCE#

6AUD_GND

8KEY (no pin)

10AUD_GND

IEEE 1394a Header

See Figure 20, B for the location of the IEEE 1394a header. Table 7 shows the pin assignments for the header.

Table 7. IEEE 1394a Header Signal Names

Pin	Signal Name
1	TPA1+
3	Ground
5	TPA2+
7	+12 V
9	Key (no pin)

Pin	Signal Name
2	TPA1-
4	Ground
6	TPA2-

8+12 V

10Ground

45