Asus P8P67 - Manual (Page 78)

3-16 Chapter 3: BIOS setup
Chapter 3
Hyper-threading [Enabled]
The Intel Hyper-Threading Technology allows a hyper-threading processor to appear as two
logical processors to the operating system, allowing the operating system to schedule two
threads or processes simultaneously.
[Enabled]
Two threads per activated core are enabled.
[Disabled] Only one thread per activated core is enabled.
Active Processor Cores [All]
Allows you to choose the number of CPU cores to activate in each processor package.
Configuration options: [All] [1] [2] [3]
Limit CPUID Maximum [Disabled]
[Enabled] Allows legacy operating systems to boot even without support for CPUs
with extended CPUID functions.
[Disabled] Disables this function.
Execute Disable Bit [Enabled]
[Enabled] Enables the No-Execution Page Protection Technology.
[Disabled] Forces the XD feature flag to always return to zero (0).
Intel(R) Virtualization Technology [Disabled]
[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.
Enhanced Intel SpeedStep Technology [Enabled]
Allows you to enable or disable the Enhanced Intel® SpeedStep Technology (EIST).
[Disabled]
The CPU runs at its default speed.
[Enabled] The operating system controls the CPU speed.
Turbo Mode [Enabled]
This item appears only when you set the EIST item to [Enabled] and allows you to enable or
disable the Intel® Turbo Mode Technology.
[Enabled]
Allows processor cores to run faster than marked frequency in specific
condition.
[Disabled] Disables this function.
CPU C1E [Enabled]
[Enabled] Enables the C1E support function. This item should be enabled in order to
enable the Enhanced Halt State.
[Disabled] Disables this function.
CPU C3 Report [Disabled]
Enables or disables the CPU C3 (ACPI C2) report to OS.
Configuration options: [Disabled] [ACPI C-2] [ACPI C-3]