User`s manual

14
2-6 Connectors, Headers
2-6-1 Connectors
(1) Power Connector: CN1 (20-pin block)
ATX Power Supply connector. This is a new defined 20-pins 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
(2) PS/2 Mouse & PS/2 Keyboard Connector: PS1
The connectors for PS/2 keyboard and PS/2 Mouse.
(3) USB Port connector: USB1
The connectors are 4-pin connector that connect USB devices to the system board.