Asus P2B P2B User Manual - Page 30

III. HARDWARE SETUP 11. IrDA-Compliant Infrared Module Connector (5-pin IR) This connector supports the optional wireless transmitting and receiving infrared module. This module mounts to a small opening on system cases that support this feature. You must also configure the setting through "UART2 Use Infrared" in Chipset Features Setup to select whether UART2 is directed for use with COM2 or IrDA. Use the five pins as shown on the Back View and connect a ribbon cable from the module to the motherboard according to the pin definitions. (NC) GND +5V IRRX IRTX Front View Back View R P2B Infrared Module Connector IRTX +5V GND FIRRX IRRX For the infrared feature to be available, you must connect the optional Infrared (IrDA) module to the motherboard 12. ATX Power Supply Connector (20-pin ATXPWR) This connector connects to a 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. III. H/W SETUP Connectors +5.0 Volts +5.0 Volts -5.0 Volts Ground Ground Ground PWR Supply On Ground -12.0Volts +3.3Volts R +12.0Volts +5V Standby Power Good Ground +5.0 Volts Ground +5.0 Volts Ground +3.3 Volts +3.3 Volts P2B ATX Power Connector IMPORTANT: Make sure that your ATX power supply can supply at least 10mAmp 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 support, your ATX power supply must supply at least 720mA. 30 ASUS P2B User's Manual