Secondary
Master (3rd)
Secondary
Slave (4th)
Pin 1
Primary
Slave (2nd)
Primary
Master (1st)
1
KEY
GND
IR_RX
NC
+5V
IR_TX
8. Connecting IDE and Floppy Cables
9. Connecting Front Panel Cable
7. Connect IrDA Connector
The IrDA connector can be configured to support wireless infrared module, with this
module and application software such as Laplink or Windows 95 Direct Cable
Connection, the user can transfer files to or from laptops, notebooks, PDA devices and
printers. This connector supports HPSIR (115.2Kbps, 2 meters) and ASK-IR (56Kbps).
Install the infrared module onto the
IrDA
connector and enable the infrared function
from BIOS Setup, UART mode select, make sure to have the correct orientation when
you plug in the IrDA connector.
Connect 34-pin floppy cable and 40-pin, 80-wire IDE cable to floppy connector FDC and
IDE connector. Be careful of the pin1 orientation. Wrong orientation may cause system
damage.
Pin 1
ATA 33/66/100
IDE Connector
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
FDD Connector
IDE 1 (Primary)
IDE 2 (Secondary)
6. Support 2
nd
USB Port
This motherboard provides four
USB
connectors to connect 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 the other USB connector to the back panel or front panel
of chassis.
USB2 Connector
Pin 1
IrDA Connector
1
Speaker
IDE LED
SPWR
ACPI & PWR
LED
Reset
1
5VSB
SPWR
ACPI LED-
GND
ACPILED
NC
NC
GND
RESET
GND
GND
Keylock
+5V
IDE LED
IDE LED
+5V
+5V
GND
NC
SPEAKER
Pin 1
USBPWR0
USB_FP_P0-
US
GND
KEY
USBPWR0
USB_FP_P1-
US
GND
USB_FP_OC0
1 2
