8.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.

EATX12V

 

EATXPWR

 

PIN 1

 

 

 

+12V DC

GND

+3 Volts

GND

+12V DC

GND

+12

Volts

+5 Volts

+12V DC

GND

+12

Volts

+5 Volts

+12V DC

GND

+5V Standby

+5 Volts

 

 

Power OK

-5 Volts

 

 

 

GND

GND

 

 

+5 Volts

GND

 

 

 

GND

GND

A88X-PRO

 

+5 Volts

PSON#

 

 

 

 

 

 

+3

GND

GND

 

 

Volts

-12 Volts

 

 

+3

Volts

+3 Volts

 

 

 

PIN 1

 

A88X-PRO 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 / 8-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.

9.Direct connector (2-pin DRCT)

This connector is for the chassis-mounted button that supports the DirectKey function. Connect the button cable that supports DirectKey, from the chassis to this connector on the motherboard.

DRCT

A88X-PRO

GND

DRCT

PIN 1

A88X-PRO DRCT connector

Ensure that your chassis comes with the button cable that supports the DirectKey feature. Refer to the technical documentation that came with the chassis for details.

Chapter 2

ASUS A88X-PRO

2-35