12
2-6 Connectors, Headers
2-6-1 Connectors
(1) Power Connector (20-pin block) : ATXPWR
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) ATX 12V Power Connector (4-pin block) : ATX12V
This is a new defined 4-pins connector that usually comes with ATX Power Supply. The ATX
Power Supply which fully support Pentium 4 processor must including this connector for
support extra 12V voltage to maintain system power consumption. Without this connector
might cause system unstable because the power supply can not provide sufficient current for
system.
Pin 1
(3) USB Port connector: USB1/USB2
The connectors are 4-pin connector that connect USB devices to the system board.
(4) LAN Port connector: LAN (for 848PDCP only)
This connector is standard RJ45 connector for Network connector.
(5) PS/2 Mouse & PS/2 Keyboard Connector: KB&MOUSE (PS2 KB/MOUSE)
The connectors for PS/2 keyboard and PS/2 Mouse.
