Asus P5Q - Manual (Page 92)

3-26 Chapter 3: BIOS setup
CPU Ratio Setting [Auto]
Allows you to adjust the ratio between CPU Core Clock and FSB Frequency. Use
the <+> and <-> keys to adjust the value.
Configuration options: [Auto] [12.0] [13.0] [14.0] [15.0] [16.0] [17.0] [18.0]
C1E Support [Enabled]
Allows you to enable or disable Enhanced Halt State support.
Configuration options: [Disabled] [Enabled]
Max CPUID Value Limit [Disabled]
Setting this item to [Enabled] allows legacy operating systems to boot even without
support for CPUs with extended CPUID functions.
Configuration options: [Disabled] [Enabled]
Intel(R) Virtualization Tech [Enabled]
The Intel ® Virtualization Technology allows a hardware platform to run multiple
operating systems separately and simultaneously, enabling one system to virtually
function as several systems. Configuration options: [Disabled] [Enabled]
CPU TM function [Enabled]
This function enables the overheated CPU to throttle the clock speed to cool down.
Configuration options: [Disabled] [Enabled]
Execute Disable Bit [Enabled]
Allows you to enable or disable the No-Execution Page Protection Technology.
Setting this item to [Disabled] forces the XD feature flag to always return to zero (0).
Configuration options: [Disabled] [Enabled]
The following items appear only when you set the CPU Ratio Setting item to
[Auto].
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]