15
2-6 Connectors, Headers
2-6-1 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 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.
** 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.
Pin 1
ROW1 ROW2
24-Pin
ROW1 ROW2
Pin 1
20-Pin
PIN ROW1 ROW2
1 3.3V 3.3V
2 3.3V -12V
3 GND GND
4 5V Soft Power On
5 GND GND
6 5V GND
7 GND GND
8 Power OK -5V
9 +5V (for Soft Logic) +5V
10 +12V +5V
11 +12V +5V
12 +3V GND
PCI-E x16 by 16
Slot
PCI-Express x1
32-bit PCI Slot
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