7.ATX power connectors (24-pin EATXPWR and 4-pin ATX12V)

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.

Do not forget to connect the 4-pin ATX +12 V 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.

Ensure that your power supply unit (PSU) can provide at least the minimum power required by your system.

If you intent to use a PSU with 20-pin and 4-pin power plugs, ensure that the 20-pin power plug can provide at least 15A on +12V and that the PSU has a minimum power rating of 350 W. The system may become unstable or may not boot up if the power is inadequate.

You must install a PSU with a higher power rating if you intend to install additional devices.

ATX12V EATXPWR

+12V DC

+12V DC

+3 Volts

GND

GND

+12 Volts

 

 

+12

Volts

 

+5V Standby

 

 

Power OK

-AM

 

Ground

P5N73

 

+5

Volts

 

Ground

 

 

 

 

+5

Volts

 

 

Ground

 

 

+3

Volts

 

 

+3

Volts

P5N73-AM ATX Power Connector

Ground

+5 Volts

+5 Volts

+5 Volts

-5 Volts

Ground

Ground

Ground

PSON#

Ground

-12 Volts

+3 Volts

ASUS P5N73-AM

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