Installing and Replacing Desktop Board Components
45
S/PDIF Connector
Figure 23, A shows the location of the S/PDIF connector. This connector can be used
with HDMI video cards that do not work with the HD Audio Link header (see
Figure 23, B).
Table 4 shows the pin assignments and signal names for
the S/PDIF connector.
Table 4. S/PDIF Connector Signal Names
Pin Description
1 Vcc
2 S/PDIF Out
3 Ground
Front Panel Audio Header
Figure 23, B shows the location of the front panel audio header. The front panel audio
header supports both High Definition (HD) Audio and AC’97 Audio. Table 5 shows the
pin assignments an
d signal names for HD Audio and Table 6 shows the pin
assignments and signal names
for AC’97 Audio.
Table 5. Front Panel Audio Header Signal Names for HD Audio
Pin Signal Name Pin Signal Name
1 PORT 1L 2 GND
3 PORT 1R 4 PRESENCE#
5 PORT 2R 6 SENSE1_RETURN
7 SENSE_SEND 8 KEY (no pin)
9 PORT 2L 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
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