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ATX Power Supply connector. This is a new defined 20-pin connector that usually
comes with ATX case. The ATX Power Supply allows to use soft power on momentary
switch that connect from the front panel switch to 2-pins Power On jumper pole on the
motherboard. When the power switch on the back of the ATX power supply turned on,
the full power will not come into the system board until the front panel switch is
momentarily pressed. Press this switch again will turn off the power to the system
board.
PIN
ROW2 ROW1
1 3.3V
3.3V
2 -12V
3.3V
3 GND
GND
4 Soft Power On 5V
5 GND
GND
6 GND
5V
7 GND
GND
8 -5V
Power OK
9 +5V
+5V (for Soft Logic)
10 +5V
+12V
Pin 1
ROW2
ROW1
(2) PS/2 Mouse & PS/2 Keyboard Connector: PS2 KB/MS
If you are using a PS/2 mouse, you must purchase an optional PS/2 mouse set which
connects to the 5-pin block and mounts to an open slot on your computer’s case.
(3) USB Port connector: USB_A
The connectors are 4-pin connector that connect USB devices to the system board.
(4) Parallel Port Connector (25-pin female): PRINT
Parallel Port connector is a 25-pin D-Subminiature Receptacle connector. The On-
board Parallel Port can be disabled through the BIOS SETUP. Please refer to Chapter 3
“INTEGRATED PERIPHERALS SETUP” section for more detail information.
(5) Audio and Game Connector : GAME
This Connector are 3 phone Jack for LINE-OUT, LINE-IN, MIC and a 15-pin
D-Subminiature Receptacle Connector for joystick/MIDI Device.
Line-out :
Audio output to speaker
Line-in :
Audio input to sound chip
MIC :
Microphone Connector
Game/MIDI :
For joystick or MIDI Device
(6) Serial Port COM1: COM1/COM2
COM1 is the 9-pin D-Subminiature mail connector. The On-board serial port can be
disabled through BIOS SETUP. Please refer to Chapter 3 “INTEGRATED PERIPHERALS
SETUP“ section for more detail information.