User`s manual

Hardware Setup

2-7

ATX 20-Pin Power Connector: JWR1

This connector is for the ATX power supply. To connect the ATX power

supply, make sure the plugs of the power supply is inserted in the proper

orientation and the pins are correctly aligned. Then, push down the power

supply firmly into the connector. The power connector supports an instant

power on function, which means the system will boot up immediately when the

power supply connector is inserted on the board.

The P4XB-MA mainboard requires an ATX power supply for powering the

system. Before inserting the power supply connector, always make sure that

all components are installed correctly to ensure that no damage will be caused.

ATX 12V Power Connector: JPW1

This 12V power connector is used to provide power to the CPU.

PIN SIGNAL

1 GND

2 GND

3 12V

4 12V

JPW1 Pin Definition

PIN SIGNAL

11 3.3V

12 -12V

13 GND

14 PS_ON

15 GND

16 GND

17 GND

18 -5V

19 5V

20 5V

PIN SIGNAL

1 3.3V

2 3.3V

3 GND

45V

5 GND

65V

7 GND

8 PW_OK

9 5V_SB

10 12V

JWR1 Pin Definition

JWR1

JPW1

Power Supply