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Connectors, Headers &Jumper Setting

3-1 Connectors

(1)

Power Connector (24-pin block): ATXPWR1

ATX Power Supply connector:

This is a new defined 24-pins

connector that usually comes

with ATX case. The ATX Power

Supply allows using soft power

momentary

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

pressed. Press this switch again will turn off the power to the system board.

** We recommend that you use an ATX 12V Specification 2.0-compliant power

supply unit (PSU) with a minimum of 350W power rating. This type has 24-pin

and 4-pin power plugs.

** If you intend to use a PSU with 20-pin and 4-pin power plugs, make sure that the

20-pin power plug can provide at least 15A on +12V and the power supply unit

has a minimum power rating of 350W. The system may become unstable or may

not boot up if the power is inadequate.

** Please refer to Figure 1 for 20-pin power plug connection. Power plug and

motherboard power connectors has adopted key design to avoid installation

mistake through connection can be made easily if in the proper direction. If the

installation direction is incorrect and you make the connection by force both the

board and the power supply can be burned. Please see to it that the direction is

correct during installation.

Figure 1: 20-pin power plug

Chapter 3

switch

that

momentarily

ROW1 ROW2

Pin 1

24-Pin

20-Pin

Figure2: 24-pin power plug

ROW1

3.3V

-12V

GND

Soft Power On

GND

Power OK

-5V

+5V (for Soft Logic)

+5V

+12V

+5V

+12V

+5V

+3V

GND

ROW2