Asus P7P55D LE - Manual (Page 48)

2-10 Chapter 2: BIOS information
2.4.1 Ai Overclock Tuner [Auto]
Allows selection of CPU overclocking options to achieve desired CPU internal
frequency. Select either one of the preset overclocking configuration options:
Manual Allows you to individually set overclocking parameters.
Auto Loads the optimal settings for the system.
D.O.C.P Overclocks DRAM frequency by adjusting BCLK frequency.
X.M.P. If you install memory module(s) supporting the eXtreme
Memory Profile (X.M.P.) Technology, choose this item to set the
profile(s) supported by your memory module(s) for optimizing
the system performance.
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] [DDR3-2133MHz]
eXtreme Memory Profile [Disabled]
This item appears only when you set the Ai Overclock Tuner item to [X.M.P.]
The configuration options for the following sub-item vary depending on the
DIMMs you install on the motherboard.
To obtain the best performance of the X.M.P. DIMM or 1600MHz DIMM, install
only one DIMM on each memory channel.
2.4.2 CPU Ratio Setting [Auto]
Allows you to adjust the ratio between CPU Core Clock and BCLK Frequency.
Use the <+> and <-> keys to adjust the value. The valid value ranges differently
according to your CPU model.
2.4.3 Intel(R) SpeedStep(TM) Tech [Enabled]
When set to [Disabled], the CPU runs at its default speed. When set to [Enabled],
the CPU speed is controlled by the operating system. Configuration options:
[Disabled] [Enabled]
2.4.4 Intel(R) TurboMode Tech [Enabled]
This item appears only if you set the Ratio CMOS Setting item to [Auto]. Turbo
mode allows processor cores to run faster than marked frequency in specific
condition. Configuration options: [Disabled] [Enabled]