Front Audio Connector; Connecting Front Panel Cable - AOpen AK77-8X Easy Installation Manual

6. Front Audio Connector

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.
Pin 1
1 2
AUD_GND
AUD_MIC
AUD_MIC_BIAS AUD_VCC
AUD_RET_R
AUD_FPOUT_R
KEY
NC
AUD_RET_L
AUD_FROUT_L
9 10
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.
Pin 1
1
+5V +5V
SBD2- SBD3-
SBD2+ SBD3+
GND GND
KEY NC
USB2 Connector
8. Connecting IDE, Floppy Cables
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.

9. Connecting Front Panel Cable

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.
IDE 2 (Secondary)
IDE 1 (Primary)
Pin 1
ATA 66/100/133
IDE Connector
Pin 1
FDD Connector
1
SPWR
ACPI & PWR
IDE LED
LED
ACPI LED
(Blue)
Speaker
Reset
1
NC SPWR
NC
GND
+5V ACPI LED-
IDE LED
GND
IDE LED ACPILED
+5V
NC
+5V ACPI_B
GND
GND
NC
RESET
SPEAKER
GND