Installing and Replacing Desktop Board Components
47
Table 8. 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
Serial Port Header
See Figure 21, C on page 45 for the location of the serial port header. Table 9 shows
the pin assignments for the serial port header.
Table 9. Serial Port Header Signal Names
Pin Signal Name Pin Signal Name
1 DCD 2 RXD#
3 TXD# 4 DTR
5 Ground 6 DSR
7 RTS 8 CTS
9 RI 10 No Connection
HD Audio Link Header
See Figure 21, D for the location of the HD Audio Link header. Table 10 shows the pin
assignments for the header.
Table 10. HD Audio Link Header Signal Names
Pin Signal Name Pin Signal Name
1 BCLK 2 Ground
3 RST# 4 DVDD_IO
5 SYNC 6 Ground
7 SDO 8 3.3V_DVDD_CORE
9 SDI0 10 +12 V
11 SDI1 12 Key
13 No Connection 14 3.3V_DUAL
15 No Connection 16 Ground
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