User Manual

iv
Contents
2.7.2 Audio I/O connections ............................................................... 2-25
2.7.3 Internal connectors
.................................................................... 2-28
2.8 Starting up for the rst time ....................................................................
2-39
2.9 Turning off the computer .........................................................................
2-39
Chapter 3: BIOS setup
3.1 Knowing BIOS ............................................................................................ 3-1
3.2 Updating BIOS ............................................................................................
3-1
3.2.1 ASUS Update utility
..................................................................... 3-2
3.2.2 ASUS EZ Flash 2 utility ...............................................................
3-4
3.2.3 ASUS CrashFree BIOS 3 utility
................................................... 3-5
3.3 BIOS setup program ..................................................................................
3-6
3.3.1 BIOS menu screen ......................................................................
3-6
3.3.2 Menu bar .....................................................................................
3-6
3.3.3 Navigation keys ...........................................................................
3-7
3.3.4 Menu items
.................................................................................. 3-7
3.3.5 Submenu items ...........................................................................
3-7
3.3.6 Conguration elds .....................................................................
3-7
3.3.7 Pop-up window
............................................................................ 3-7
3.3.8 Scroll bar .....................................................................................
3-7
3.3.9 General help
................................................................................ 3-7
3.4 Main menu ..................................................................................................
3-8
3.4.1 SATA 1-5; SATA_E1 ....................................................................
3-8
3.4.2 Storage Conguration ...............................................................
3-10
3.4.3 AHCI Conguration ...................................................................
3-11
3.4.4 System Information ...................................................................
3-11
3.5 Ai Tweaker menu ......................................................................................
3-12
3.5.1 Ai Overclock Tuner [Auto] .........................................................
3-12
3.5.2 CPU Ratio Setting [Auto]
........................................................... 3-13
3.5.3 FSB Frequency [XXX] ...............................................................
3-13
3.5.4 PCIE Frequency [XXX]
.............................................................. 3-13
3.5.5 FSB Strap to North Bridge [Auto] ..............................................
3-13
3.5.6 DRAM Frequency [Auto] ...........................................................
3-13
3.5.7 DRAM Timing Control [Auto] .....................................................
3-13
3.5.8 DRAM Static Read Control [Auto] .............................................
3-15
3.5.9 DRAM Read Training [Auto] ......................................................
3-15
3.5.10 MEM. OC Charger [Auto] ..........................................................
3-15
3.5.11 Ai Clock Twister [Auto] ..............................................................
3-15
3.5.12 Ai Transaction Booster [Auto]
.................................................... 3-15