Secondary
Master (3rd)
Secondary
Slave (4th)
Pin 1
Primary
Slave (2nd)
Primary
Master (1st)
9. Connecting IDE and Floppy Cables
10. Connecting Front Panel Cable
8. 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)
7. Support Six USB Connectors
This motherboard provides six
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 other USB connectors to the back panel or front panel of
chassis.
Pin 1
IrDA Connector
1
SPWR
GND
ACPI LED-
GND
ACPILED
NC
NC
GND
RESET
GND
NC
NC
+5V
IDE LED
IDE LED
+5V
+5V
GND
NC
SPEAKER
1
Speaker
IDE LED
SPWR
ACPI & PWR
LED
Reset
1
KEY
GND
SBD2+
SBD2-
+5V
NC
GND
SBD3+
SBD3-
+5V
USB2 Connector
IR_TX
+5V
NC
IR_RX
GND
KEY
1
Pin 1
