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Chapter 2
2.4 Power Supply
ATX 20-Pin Power Connector: ATX1
This connector allows you to connect to an ATX power supply. To
connect to the ATX power supply, make sure the plug of the power supply is
inserted in the proper orientation and the pins are aligned. Then push down the
power supply firmly into the connector. The power connector supports instant
power on function which means that system will boot up immediately when the
power supply connector is inserted on the board.
ATX 12V Power Connector: JPW1
This 12V power connector is used to provide power to the CPU.
JPW1
4
3
1
2
ATX1
20
11
10
1
JPW1 Pin Definition
PIN
SIGNAL
1
GND
2
GND
3
12V
4
12V
ATX1 Pin Definition
PIN
SIGNAL
PIN
1
3.3V
11
2
3.3V
12
3
GND
13
4
5 V
14
5
GND
15
6
5 V
16
7
GND
17
8
PW_OK
18
9
5V_SB
19
10
12 V
20
2-6
SIGNAL
3.3V
-12V
GND
PS_ON
GND
GND
GND
-5 V
5 V
5 V
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