Asus P4SD User Guide - Page 12

6. Connectors This section describes and illustrates the internal connectors on the motherboard. 1. Floppy disk drive connector (34-1 pin FLOPPY1) This connector supports the provided floppy drive ribbon cable. After connecting one end to the motherboard, connect the other end to the floppy drive. (Pin 5 is removed to prevent incorrect insertion when using ribbon cables with pin 5 plug). P4SD-LA FLOPPY1 NOTE: Orient the red markings on the floppy ribbon cable to PIN 1 PIN 1 P4SD-LA Floppy Disk Drive Connector 2. ATX power connectors (20-pin ATX_POWER1, 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. ATX12V1 ATXPWR1 P4SD-LA GND +12V DC P4SD-LA ATX Power Connector GND +12.0VDC +12V DC +5VSB PWR_OK COM +5.0VDC COM +5.0VDC COM +3.3VDC +3.3VDC +5.0VDC +5.0VDC -5.0VDC COM COM COM PS_ON# COM -12.0VDC +3.3VDC 8 ASUS P4SD-LA motherboard