10.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.

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.

1. Do not forget to connect the 4-pin ATX +12V power plug. Otherwise, the system does not boot up.

2.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. The system may become unstable or may not boot up if the power is inadequate.

ATX12VATX_POWER

PSCH-L

+12V DC

 

 

 

 

 

 

+12V DC

+3.3VDC

 

 

 

+3.3VDC

 

 

 

 

 

 

 

 

 

GND

 

 

 

 

 

 

GND

-12.0VDC

 

 

+3.3VDC

 

 

 

 

 

 

 

 

 

COM

 

 

COM

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PS_ON#

 

 

+5.0VDC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

COM

 

 

COM

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

COM

 

 

+5.0VDC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

COM

 

 

 

COM

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

-5.0VDC

 

 

PWR_OK

 

 

 

 

 

 

 

 

 

+5.0VDC

 

 

+5VSB

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

+5.0VDC

 

 

+12.0VDC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PSCH-L ATX Power Connectors

ASUS PSCH-L motherboard

2-25