5.ATX power connectors (20-pin ATXPWR, 4-pin ATX+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.

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.

P4S333-VM

ATXPWR

 

 

+5.0VDC

+5.0VDC

5.0VDC-

COM COM COM ON#PS

 

COM 12.0VDC-

+3.3VDC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ATX12V

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Pin

 

 

 

 

 

 

 

 

 

 

 

 

 

+12.0VDC

+5VSB

PWROK

COM +5.0VDC COM +5.0VDC

COM +3.3VDC

+3.3VDC

+12V DC COM

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Pin 1

+12V DC COM

P4S333-VM ATX Power Connectors

6.USB header (10-1 pin USB1)

If the USB port connectors on the rear panel are inadequate, a USB header is available for additional USB port connectors. Connect the bundled 2-port USB connector set to this header and mount the USB bracket to an open slot in the chassis.

P4S333-VM

P4S333-VM USB Header

 

Power P3-

P3+

GND NC

 

2

USB USB

USB

10

 

 

 

USB2

1

 

 

 

 

9

USB Power USB P4- USB P4+

GND

2-22

Chapter 2: Hardware information