6.ATX power connectors (24-pin EATXPWR, 4-pin ATX12V)

These connectors are for an ATX power supply. The plugs from the power supply 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

M5A97 LE R2.0

GND +12V DC GND +12V DC

 

+3 Volts

 

 

 

 

 

 

GND

 

 

 

 

 

 

 

 

 

 

 

 

 

 

+12

Volts

 

 

 

 

 

 

+5 Volts

 

+12

Volts

 

 

 

 

 

 

+5 Volts

 

+5V Standby

 

 

 

 

 

 

+5 Volts

 

Power OK

 

 

 

 

 

 

-5 Volts

PIN 1

 

GND

 

 

 

 

 

 

GND

+5 Volts

 

 

 

 

 

 

GND

 

 

GND

 

 

 

 

 

 

GND

 

+5 Volts

 

 

 

 

 

 

PSON#

 

 

GND

 

 

 

 

 

 

GND

 

+3

Volts

 

 

 

 

 

 

-12 Volts

 

+3

Volts

 

 

 

 

 

 

+3 Volts

 

 

PIN 1

 

 

 

 

 

 

M5A97 LE R2.0 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 300 W.

•DO NOT forget to connect the 4-pin ATX12 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.

•If you want to use two high-end PCI Express x16 cards, use a PSU with 1000W power or above to ensure the system stability.

1 Chapter

1-22

Chapter 1: Product introduction