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EVGA Corporation 2900 Saturn St. Suite B, Brea, CA 92821
Phone: 888 / 881-EVGA - 714 / 528-4500 - Fax: 714 / 528-4501
Page 20
2-6 Connectors and Headers
2-6-1 Connectors
Power Connector (24-pin block) : ATXPWR
ATX Power Supply connector. This is a newly defined 24-pin connector that
usually comes with an ATX case. The ATX Power Supply allows you to use soft
power on momentary switch that connects 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 is turned on, the full power will not come into the
system board until the front panel switch is momentarily pressed. Press this
switch again to 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 both 24-
pin and the 4-pin power plugs needed.
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 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