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

These connectors are for the 24-pin and 4-pin power plugs from the power supply unit. The plugs from the power supply unit 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 ATX12V power plug to the ATX12V connector on the motherboard. Otherwise, the system will not boot up.

P5K18L

P5K18L ATX Power Connector

EATXPWR ATX12V

+3 Volts

+3 Volts

Ground +5 Volts

Ground +5 Volts

Ground Power OK

+5V Standby

+12 Volts

+12 Volts

+3 Volts

 

+12V DC GND

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

+3 Volts

-12 Volts

Ground PSON#

Ground Ground

Ground -5 Volts

+5 Volts

+5 Volts

+5 Volts

Ground

 

+12VDC GND

3.IDE connector (40-1 pin PRI_IDE)

This connector is for an IDE 100/66 signal cable, a blue connector for the primary IDE connector on the motherboard

 

PRI_IDE

 

PIN1

P5K18L

NOTE: Orient the red markings

 

(usually zigzag) on the ID

 

ribbon cable to PIN 1.

P5K18L IDE Connector

• Pin 20 on the IDE connector is removed to match the covered hole on the Ultra DMA cable connector. This prevents incorrect insertion when you connect the IDE cable.

•Use the 80-conductor IDE cable for Ultra DMA 100/66 IDE devices.

4-

Chapter 4: Motherboard Info