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 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 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
