EVGA nForce 123-YW-E175 - Manual (Page 24)

EVGA
Audio
The audio connector supports HD audio standard and provides two kinds of audio output choices:
the Front Audio, the Rear Audio. The front Audio supports re-tasking function.
Connector Pin Signal Pin Signal
1 PORT1_L 2 AUD_GND
3 PORT1_R 4 PRECENCE_J
5 PORT2_R 6 SENSE1_RETURN
7 SENSE_SEND 8 Empty
9 PORT2_L 10 SENSE2_RETURN
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Pin Assignments
COM1
The motherboard kit provides an additional serial COM header for your machine. Connect one side
of a switching cable to the header and then attach the serial COM device to the other side of the
cable.
Connector Pin Signal Pin Signal
1 DCD (Data Carrier Detect) 2 DSR (Data Set Ready)
3 RXD (Receive Data) 4 RTS (Request to Send)
5 TXD (Transmit Data) 6 CTS (Clear to Send)
7 DTR (Data Terminal Ready) 8 RI (Ring Indicator)
9 GND 10 No Connect
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Pin Assignments