User`s manual

Installation
Page 3-10
SPDIFCON: (Optional for ALC650 AC97 chip)
This connector is the digital link between the
motherboard and your devices, such as CD player,
sampler or DAT recorder. It allows the digital
transmission of audio data in SPDIF (Sony/Philips
Digital Interface) format.
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#
$
VCC
NC
GND
SPDIF_IN
SPDIF_OUT
J_F_ACON: Front Panel Audio Connector
A feature of the front panel headphone jack is that
rear panel audio output connectors are disabled
when headphone are plugged in.
If the front panel interface board is not connected
to the front panel audio header, pins 5, 6, 9 and 10
should be jumpered on the front panel audio
header.
If these jumpers are not installed, the rear panel
audio connectors will be inoperative.
Note:
Pin (5-6) & (9-10) Short: Only Onboard Rear Audio (Speaker)
can be use.
Pin (5-6) & (9-10) Open: Only Front Panel Audio can be use.
(Default)