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Chapter 3: BIOS setup
Active Processor Cores [All]
Allows you to choose the number of CPU cores to activate in each processor package.
Conguration options: [All] [1] [2] [3] [4] [5]
Limit CPUID Maximum [Disabled]
[Enabled] Allows legacy operating systems to boot even without support for
CPUs with extended CPUID functions.
[Disabled] Disables this function (for Windows XP).
Execute Disable Bit [Enabled]
[Enabled] Enables the No-Execution Page Protection Technology.
[Disabled] Forces the XD feature ag to always return to zero (0).
Intel Virtualization Tech [Enabled]
[Enabled] Allows a hardware platform to run multiple operating systems
separately and simultaneously, enabling one system to virtually
function as several systems.
[Disabled] Disables this function.
CPU Power Management Conguration
CPU Ratio [Auto]
Allows user to manually adjust the maximum non-turbo CPU ratio. The value will be limited to
CPU-based or factory setting.
Use <+> and <-> keys to adjust the ratio. The values range from 12 to 22 with a 1 interval.
(The valid value ranges may vary according to your CPU model.)
[Values 12~20] Presets Enhanced Intel SpeedStep Technology and Turbo
Mode to [Disabled] but can be adjusted.
[Values 21~22] Disallows conguration for Turbo Mode.
Enhanced Intel SpeedStep Technology [Enabled]
Enhanced Intel
®
SpeedStep Technology (EIST) allows the system operation to dynamically
adjust processor voltage and cores frequency, which can result in decreased average power
consumption and decreased average heat production.
[Disabled] The CPU runs at its default speed.
[Enabled] The operating system controls the CPU speed.
Turbo Mode [Enabled]
This automatically allows processor cores to run faster than the base operating frequency if
it’s operating below power, current, and temperature specication limit.
[Disabled] Disables this function.
[Enabled] Allows processor cores to run faster than marked frequency in
specic condition.
CPU C1E [Auto]
[Auto] Set this item automatically.
[Disabled] Disables this function.
[Enabled] Enables the C1E support function. This item should be enabled in
order to enable the Enhanced Halt State.