11. ATX power connectors (24-pin EATXPW, 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.

Use of an ATX 12 V Specification 2.0 -compliant power supply unit

(PSU) that provides a minimum power of 350 W is recommended for a fully-configured system.

Do not forget to connect the 4-pin ATX +12 V power plug; otherwise, the system will not boot up.

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.

ATX12V

+12V DC +12V DC

GND GND

EATXPWR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

+3 Volts

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

+12 Volts

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

+12 Volts

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

+5V Standby

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

-E

 

 

 

 

 

 

Power OK

 

 

 

 

 

 

 

 

 

 

 

P5PL2

 

 

 

 

 

 

Ground

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

+5 Volts

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Ground

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

+5 Volts

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Ground

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

+3 Volts

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

+3 Volts

P5PL2-E ATX Power Connector

Ground

+5 Volts

+5 Volts

+5 Volts

-5 Volts

Ground

Ground

Ground

PSON#

Ground

-12 Volts

+3 Volts

2-28

Chapter 2: Hardware information