2.Floppy disk drive connector (34-1 pin FLOPPY)

This connector supports the provided floppy drive ribbon cable. After connecting one end to the motherboard, connect the other end to the floppy drive. (Pin 5 is removed to prevent incorrect insertion when using ribbon cables with pin 5 plug).

K8U-X

Note: Orient the red markings on the floppy ribbon cable to PIN 1.

FLOPPY

PIN 1

K8U-X Floppy disk drive connector

3.ATX power connectors (20-pin ATXPWR, 4-pin ATX12V)

These connectors connect to an ATX 12V power supply. The plugs from the power supply are designed to fit these connectors in only one orientation. Find the proper orientation and push down firmly until the connectors completely fit.

Make sure that your ATX 12V power supply can provide 8A on the +12V lead and at least 1A on the +5-volt standby lead (+5VSB). The minimum recommended wattage is 300W or 350W for a fully configured system. The system may become unstable and may experience difficulty powering up if the power supply is inadequate.

ATXPWR ATX12V

K8U-X

Pin 1

+12.0VDC +5VSB

PWR_OK COM +5.0VDC

COM +5.0VDC

COM +3.3VDC +3.3VDC

+5.0VDC

+12V DC

 

 

 

+12V DC

+5.0VDC

GND

 

 

 

GND

 

 

 

-5.0VDC

 

 

 

 

 

COM

 

 

 

 

 

COM

 

 

 

 

 

COM

 

 

 

 

 

PS_ON#

 

 

 

 

 

COM

 

 

 

 

 

-12.0VDC

 

 

 

 

 

+3.3VDC

 

 

 

 

 

K8U-X ATX power connectors

Please donʼt forget to connect with 4-pin ATX +12V power plug supply, or system will not startup.

ASUS K8U-X Motherboard

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