9.ATX power connectors (24-pin EATXPWR, 8-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.

EATXPWR

 

 

 

+3

Volts

Ground

 

 

 

+12

Volts

+5 Volts

 

 

EATX12V

+12

Volts

+5 Volts

 

 

+5V Standby

+5 Volts

 

 

 

Power OK

-5 Volts

 

GND

+12V DC

Ground

Ground

 

GND

+12V DC

+5 Volts

Ground

P5E

GND

+12V DC

Ground

Ground

 

GND

+12V DC

+5 Volts

PSON#

 

Ground

Ground

 

 

 

P5E ATX power connectors

 

+3

Volts

-12 Volts

 

+3

Volts

+3 Volts

• Make sure to remove the cap on the EATX12V connector before connecting an 8-pin EPS +12V power plug.

•Use only an 8-pin EPS +12V power plug for the EATX12V connector.

• 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 400 W.

•Do not forget to connect the 4-pin/8pin EATX12V power plug; otherwise, the system will not boot.

•Use of a PSU with a higher power output is recommended 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.

•The ATX 12 V Specification 2.0-compliant (400W) PSU has been tested to support the motherboard power requirements with the following configuration:

CPU: Intel® Pentium® Extreme 3.73GHz

Memory: 512 MB DDR2 (x4)

Graphics card: ASUS EAX1900XT

Parallel ATA device: IDE hard disk drive

Serial ATA device: SATA hard disk drive (x2)

Optical drive: DVD-RW

•If you want to use two high-end PCI Express x16 cards, use a PSU with 500W to 600W power or above to ensure the system stability.

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Chapter 2: Hardware information