Asus P4P8X P4P8X user's manual English version E1299 - Page 34

Required IDE Configuration settings in BIOS Refer to the following table for the appropriate BIOS settings of the above P-ATA and S-ATA device configurations. See section "2.3.6 IDE Configuration" for details on the related BIOS items. BIOS item Windows 2000/XP Onboard IDE Operate Mode Enhanced Mode Enhanced Mode Support On S-ATA IDE Port Settings - Windows 98/Me/NT4.0 A B C Compatible Mode - Compatible Mode - Compatible Mode - Primary P-ATA+S-ATA Sec. P-ATA+S-ATA P-ATA Ports Only • When using Serial ATA function, make sure that the Windows® XP™ Service Pack 1 is installed. • When using Serial ATA hard disks in a legacy operating system (Windows 98, 98SE, ME, NT, DOS) make sure to adjust the appropriate BIOS settings. Refer to section "2.3.6 IDE Configuration" in page 2-12 for more detailed setting information. 5. ATX power connectors (20-pin ATXPWR1, 4-pin ATX12V1) 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 ATXPWR1 connector, this motherboard requires that you connect the 4-pin ATX +12V power plug to provide sufficient power to the CPU. • Do not forget to connect the 4-pin ATX +12V power plug. Otherwise, the system will not boot up. • 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. ATXPWR1 +3.3VDC +3.3VDC -12.0VDC +3.3VDC COM COM PS_ON# +5.0VDC COM COM ® COM +5.0VDC COM COM -5.0VDC PWR_OK P4P8X +5.0VDC +5VSB +5.0VDC +12.0VDC P4P8X ATX Power Connector ATX12V1 +12V DC GND +12V DC GND 1-24 Chapter 1: Product introduction