9.ATX power connectors (24-pin EATXPWR; 4-pin EATX12V)

These connectors are for ATX power supply plugs. The power supply plugs are designed to fit these connectors in only one orientation. Find the proper orientation and push down firmly until the connectors completely fit.

 

ATX12V

 

EATXPWR

GND

+12V DC

+3 Volts

GND

GND

+12V DC

+12

Volts

+5 Volts

 

PIN 1

+12

Volts

+5 Volts

 

+5V Standby

+5 Volts

 

 

 

 

Power OK

-5 Volts

 

 

 

GND

GND

 

 

+5 Volts

GND

P8Z77-V LX2

 

 

GND

GND

 

 

 

 

 

+5 Volts

PSON#

 

 

 

GND

GND

 

 

+3

Volts

-12 Volts

 

 

+3

Volts

+3 Volts

 

 

 

PIN 1

 

P8Z77-V LX2 ATX power connectors

• For a fully configured system, we recommend that you use a power supply unit (PSU) that complies with ATX 12 V Specification 2.0 (or later version) and provides a minimum power of 450 W.

•Do not forget to connect the 4-pin EATX12 V power plug; otherwise, the system will not boot.

•We recommend that you use a PSU with higher power output when configuring a system with more power-consuming devices. The system may become unstable or may not boot up if the power is inadequate.

•If you are uncertain about the minimum power supply requirement for your system, refer to the Recommended Power Supply Wattage Calculator at http://support.asus. com/PowerSupplyCalculator/PSCalculator.aspx?SLanguage=en-us for details.

1 Chapter

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Chapter 1: Product introduction