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
4
5V
5
GND
6
5V
7
GND
8
PW_OK
9
5V_SB
10
12V
JWR1 Pin Definition
JWR1
10
1
20
11
JPW1
1
3
2
4
Power Supply