Asus CROSSHAIR IV EXTREME User Manual page 4

Contents
2.7 I/O shield Installation ................................................................. 2-27
2.8 Connectors ................................................................................. 2-28
2.8.1
2.8.2
2.8.3
2.8.4
2.8.5
2.8.6
2.9 Starting up for the first time ...................................................... 2-46
2.10 Turning off the computer ........................................................... 2-47
2.10.1
2.10.2
Chapter 3:
3.1 Managing and updating your BIOS ............................................ 3-1
3.1.1
3.1.2
3.1.3
3.2 BIOS setup program .................................................................... 3-6
3.2.1
3.2.2
3.2.3
3.2.4
3.2.5
3.2.6
3.2.7
3.2.8
3.2.9
3.3 Extreme Tweaker menu ............................................................... 3-9
3.3.1
3.3.2
3.3.3
3.3.4
3.3.5
3.3.6
iv
Rear panel connectors .................................................. 2-28
Audio I/O connections ................................................... 2-29
Internal connectors ....................................................... 2-32
ASUS Q-Connector (system panel) .............................. 2-40
Onboard switches ......................................................... 2-41
ProbeIt .......................................................................... 2-45
Using the OS shut down function .................................. 2-47
Using the dual function power switch ............................ 2-47
BIOS setup
ASUS Update utility ........................................................ 3-1
ASUS EZ Flash 2 utility ................................................... 3-4
ASUS CrashFree BIOS 3 utility ...................................... 3-5
BIOS menu screen .......................................................... 3-7
Menu bar ......................................................................... 3-7
Navigation keys ............................................................... 3-7
Menu items ..................................................................... 3-8
Submenu items ............................................................... 3-8
Configuration fields ......................................................... 3-8
Pop-up window ............................................................... 3-8
Scroll bar ......................................................................... 3-8
General help ................................................................... 3-8
CPU Level Up ................................................................ 3-9
OC Tuner Utility ............................................................. 3-10
Ai Overclock Tuner ....................................................... 3-10
CPU Ratio .....................................................................3-11
DRAM Frequency .........................................................3-11
CPU/NB Frequency ......................................................3-11