13.ATX power connectors and ASUS EZ Plug™(20-pin ATXPWR, 4-pin ATX+12V, 4-pin AUX+12V)

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.

In addition to the 20-pin ATXPWR connector, this motherboard requires that you connect the 4-pin ATX +12V power plug to provide sufficient power to the CPU.

If you are using a standard ATX power supply that does not have the added ATX +12V plug, then simply connect one of the 4-pin device power plugs into the ASUS EZ Plug™ connector labeled AUX12V.

Make sure that your ATX 12V power supply can provide at least 8A on the +12V lead and at least 1A on the +5-volt standby lead (+5VSB). The minimum recommended wattage is 230W, or 300W for a fully configured system. The system may become unstable and may experience difficulty powering up if the power supply is inadequate.

P4S8X

 

+5.0VDC

+5.0VDC

5.0VDC-

COM

COM

COM

PSON#

COM

12.0VDC-

+3.3VDC

AUX12V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

+12V

ATXPWR

 

 

 

 

 

 

 

 

 

 

GND

 

 

 

 

 

 

 

 

 

 

GND

 

 

 

 

 

 

 

 

 

 

 

Pin 1

+12.0VDC

+5VSB

PWR OK

COM

+5.0VDC

COM

+5.0VDC

COM

+3.3VDC

+3.3VDC

+5V

 

 

+12V DC COM

ATX12V

Pin 1

P4S8X ATX & Auxiliary Power Connectors

+12V DC COM

ASUS P4S8X motherboard user guide

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