SETUP H/W .3

Connectors

3.HARDWARE SETUP

22)ATX Power Supply Connector (20-pin ATXPWR)

This connector connects to an ATX power supply. The plug from the power supply will only insert in one orientation because of the different hole sizes. Find the proper orientation and push down firmly but gently making sure that the pins are aligned.

 

+3.3 Volts

+3.3 Volts

 

-12.0 Volts

+3.3 Volts

 

Ground

Ground

 

Power Supply On

+5.0 Volts

 

Ground

Ground

 

Ground

+5.0 Volts

-F

Ground

Ground

-5.0 Volts

Power Good

P3B

+5.0 Volts

+5V Standb

 

 

+5.0 Volts

+12.0 Volts

ATXPWR

P3B-F ATX Power Connector

IMPORTANT: Make sure that your ATX power supply can supply at least 10mA on the 5-volt standby lead (5VSB). You may experience difficulty in powering on your system if your power supply cannot support the load. For Wake-On- LAN, keyboard wake up, and suspend-to-RAM support, your ATX power supply must supply at least 720mA +5VSB.

23)Power Supply Thermal Sensor Connector

If you have a power supply with thermal monitoring, connect its thermal sensor cable to this connector.

Power Supply Thermal Sensor Connector

JTPWR

P3B-F

P3B-F Thermal Sensor Connector

38

ASUS P3B-F User’s Manual