4.ATX power connectors (20-pin ATX_POWER, 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.

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.

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 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.

 

ATXPWR

 

 

 

 

+3.3VDC

+3.3VDC

 

 

-12.0VDC

+3.3VDC

 

 

COM

COM

 

 

PS_ON#

+5.0VDC

 

ATX12V

COM

COM

 

COM

+5.0VDC

 

 

COM

COM

 

COM +12V DC

-5.0VDC

PWR_OK

 

+5.0VDC

+5VSB

 

Pin 1

P4B533-M

+5.0VDC

+12.0VDC

 

 

COM +12V DC

P4B533-M ATX Power Connectors

2-22

Chapter 2: Hardware information