Manual

iv
Contents
2.5.5 PCI Express x1 slots ..................................................... 2-24
2.5.6 PCI Express x16 slot ..................................................... 2-24
2.5.7 PCI Express 2.0 x16 slots ............................................. 2-24
2.6 Jumper ........................................................................................ 2-26
2.7 I/O shield and Audio card Installation ...................................... 2-27
2.7.1 I/O shield Installation ..................................................... 2-27
2.7.2 Audio card Installation ................................................... 2-28
2.8 Connectors ................................................................................. 2-29
2.8.1 Rear panel connectors .................................................. 2-29
2.8.2 Internal connectors ....................................................... 2-31
2.8.3 Onboard switches ......................................................... 2-41
  ...................................................... 2-43
2.10 Turning off the computer ........................................................... 2-44
2.10.1 Using the OS shut down function .................................. 2-44
2.10.2 Using the dual function power switch ............................ 2-44
Chapter 3: BIOS setup
3.1 Managing and updating your BIOS ............................................ 3-1
3.1.1 ASUS Update utility ........................................................ 3-1
3.1.2 ASUS EZ Flash 2 utility ................................................... 3-4
3.1.3 ASUS CrashFree BIOS 3 utility ...................................... 3-5
3.2 BIOS setup program .................................................................... 3-6
3.2.1 BIOS menu screen .......................................................... 3-7
3.2.2 Menu bar ......................................................................... 3-7
3.2.3 Navigation keys ............................................................... 3-7
3.2.4 Menu items ..................................................................... 3-8
3.2.5 Submenu items ............................................................... 3-8
  ......................................................... 3-8
3.2.7 Pop-up window ............................................................... 3-8
3.2.8 Scroll bar ......................................................................... 3-8
3.2.9 General help ................................................................... 3-8
3.3 Extreme Tweaker menu ............................................................... 3-9
3.3.1 Ai Overclock Tuner [Auto] ............................................. 3-10
  ............... 3-10
3.3.3 OC From CPU/Memory Level Up [Auto] ....................... 3-10
3.3.4 CPU Ratio Setting [Auto] .............................................. 3-10