6. Front Audio Connector
8. Connecting IDE, Floppy Cables
Pin 1
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
5-6 and 9-10 jumper caps from the Front Audio Connector before connecting the cable.
Please do not remove these 5-6 and 9-10 yellow jumper caps if there’s no audio port on the
front panel.
Connect 34-pin floppy cable and 40-pin IDE cable to floppy connector FDC connector. Be
careful of the pin1 orientation. Wrong orientation may cause system damage.
Pin 1
FDD Connector
IDE 1 (Primary)
IDE 2 (Secondary)
Pin 1
ATA 66/100/133
IDE Connector
1 2
AUD_MIC
AUD_MIC_BIAS
AUD_FPOUT_R
NC
AUD_FROUT_L
9 10
AUD_GND
AUD_VCC
AUD_RET_R
KEY
AUD_RET_L
Pin 1
7. Support Six USB 2.0 Ports
This motherboard provides six USB ports to connect USB devices, such as mouse,
keyboard, modem, printer, etc. There are four connectors on the PC99 back panel. You
can use proper cables to connect the other USB connectors to the USB modules or front
panel of chassis. Compared to traditional USB 1.0/1.1 with the speed of 12Mbps, USB 2.0
has a fancy speed up to 480Mbps, which is 40 times faster than the traditional one.
9. Connecting Front Panel Cable
1
Speaker
IDE LED
SPWR
ACPI & PWR
LED
ACPI LED
(Blue)
Reset
1
NC
NC
+5V
IDE LED
IDE LED
+5V
+5V
GND
NC
SPEAKER
SPWR
GND
ACPI LED-
GND
ACPILED
NC
ACPI_B
GND
RESET
GND
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
.
1
+5V
SBD2-
SBD2+
GND
KEY
+5V
SBD3-
SBD3+
GND
NC
USB2 Connector
