Asus Crosshair IV Formula - Manual (Page 86)

3-10 Chapter 3: BIOS setup
3.3.2 OC Tuner Utility
OC Tuner utility automatically overclocks the frequency and voltage of the CPU
and DRAM. Press to start auto tuning. It takes around five minutes, and
the system will reboot for several times until auto tuning is completed.
3.3.3 Ai Overclock Tuner [Auto]
Allows you to select the CPU overclocking options to achieve the desired CPU
internal frequency. Select any of these preset overclocking configuration options:
Manual Allows you to individually set overclocking parameters.
Auto Loads the optimal settings for the system.
D.O.C.P
Allows you to select a DRAM O.C. profile, and the related
parameters will be adjusted automatically.
CPU Level UP
Allows you to select a CPU level, and the related parameters
will be adjusted automatically.
The configuration options for the following sub-items vary depending on the
CPU/DIMMs you install on the motherboard.
OC From CPU Level UP [Auto]
This item appears only when you set the Ai Overclock Tuner item to [Manual]
and allows you to select a CPU level. The related parameters will be automatically
adjusted according to the selected CPU level.
CPU Bus Frequency [XXX]
This item appears only when you set the Ai Overclock Tuner item to [Manual]
and displays the frequency sent by the clock generator to the system bus and PCI displays the frequency sent by the clock generator to the system bus and PCI
bus. Use the <+> and <-> keys to adjust the CPU Bus frequency. You can also key
in the desired frequency using the numeric keypad. The values range from 100 to
600.
PCIE Frequency [XXX]
This item appears only when you set the Ai Overclock Tuner item to [Manual]
and allows you to set the PCI Express frequency. Use the <+> and <-> keys to allows you to set the PCI Express frequency. Use the <+> and <-> keys to
adjust the PCIE frequency. You can also key in the desired value using the numeric
keypad. The values range from 100 to 150.
DRAM O.C. Profile [DDR3-1600MHz]
This item appears only when you set the Ai Overclock Tuner item to [D.O.C.P.]
and allows you to select a DRAM O.C. profile, which applies different settings to
DRAM frequency, DRAM timing and DRAM voltage. Configuration options: [DDR3-
1600MHz] [DDR3-1800MHz] [DDR3-1866MHz] [DDR3-2000MHz]