AT6 Pentium II MainboardUSER’S MANUALTable of ContentsChapter 1 Introduction of AT6 Features¨ Specifications..................................................…….1-1≠ Layout diagram .......................................................1-3Æ The system block diagram........................................1-4Chapter 2 Installing the Mainboard¨ Installing the Mainboard to the Casing ....................2-3≠ Standard External Connectors .................................2-4Æ Jumper and Switches..............................................2-11Ø Installation of the CPU ..........................................2-13∞ Installing System Memor °i DRAM Memory °j...2-16Chapter 3 Introduction of BIOS¨ CPU Setup °iCPU SOFT MENU™°j ................3-3≠ Standard CMOS Setup Menu ..............................3-7Æ BIOS Features Setup Menu .................................3-9Ø Chipset Features Setup Menu ............................3-15∞ Power Management Setup Menu .......................3-17± PCI & Onboard I/O Setup .................................3-22≤ Load BIOS Defaults ..........................................3-26≥ Load Setup Defaults .........................................3-26¥ Password Setting .................................................3-27μ IDE HDD Auto Detection .................................3-28Chapter 4 Bus Master IDE Driver