USB2.0 Connector
1
8. S/PDIF Connector
9. Front Audio Connector
7. Connecting Front Panel Cable
S/PDIF (Sony/Philips Digital Interface) is a latest audio transfer file format that provides
impressive
quality through optical fiber and allows you to enjoy digital audio instead of
analog. Normally there are two S/PDIF outputs as shown, one for RCA connector, the most
common one used for consumer audio products, and the other for optical connector with a
even better audio quality. Through a specific audio cable, you can connect the S/PDIF
connector to a S/PDIF audio module bearing S/PDIF digital output. However, you must
have a S/PDIF supported speaker with S/PDIF digital input to make the most of this
function.
6. Support the 3
rd
USB2.0 Channel
This motherboard provides four
USB
connectors to link USB devices, such as mouse,
keyboard, modem, printer, etc. There are two connectors on the PC99 back panel. You
can use proper cable to connect other USB connectors to the back panel or front panel of
chassis.
If the housing has been designed with an audio port on the front panel, you’ll be able to
connect onboard audio to front panel through this connector. By the way, please remove
the jumper cap from the Front Audio Connector before you connect the cable. Do not
remove this yellow jumper cap if your housing doesn’t have an audio port on the front
panel.
Pin1
S/PDIF
Connector
Pin1
Connecting to
RCA Cable
Connecting to
Optical Cable
Audio
cable
S/PDIF Module
(Optional)
Pin 1
Attach the power LED, speaker, and reset switch connectors to
the corresponding pins. If you enable “Suspend Mode” item in
BIOS Setup, the ACPI & Power LED will keep flashing while the
system is in suspend mode.
Locate the power switch cable from your ATX housing. It is
2-pin female connector from the housing front panel. Plug this
connector to the soft-power switch connector marked
SPWR
.
Pin 1
Speaker
IDE LED
SPWR
ACPI & PWR
LED
Reset
1
SPWR
GND
ACPI LED-
GND
ACPILED
NC
ACPI_B
GND
RESET
GND
NC
NC
+5V
IDE LED
IDE LED
+5V
+5V
GND
NC
SPEAKER
1
AUD_GND
AUD_VCC
AUD_RET_R
KEY
AUD_RET_L
AUD_MIC
AUD_MIC_BIAS
AUD_FPOUT_R
NC
AUD_FPOUT_L
+5V
SBD3-
SBD3+
GND
NC
+5V
SBD2-
SBD2+
GND
KEY
1
ACPI LED (BLUE)
