ASRock Fatal1ty X79 Professional User Manual - Page 68

Enhance Halt State C1E

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CPU Power Management Configuration Intel SpeedStep Technology Intel SpeedStep technology is Intel's new power saving technology. Processors can switch between multiple frequencies and voltage points to enable power saving. The default value is [Enabled]. Configuration options: [Enabled] and [Disabled]. If you install Windows® VistaTM / 7 and want to enable this function, please set this item to [Enabled]. This item will be hidden if the current CPU does not support Intel SpeedStep technology. Please note that enabling this function may reduce CPU voltage and lead to system stability or compatibility issues with some power supplies. Please set this item to [Disabled] if above issues occur. Intel Turbo Mode Technology Use this item to enable or disable Intel Turbo Boost Mode Technology. Turbo Boost Mode allows processor cores to run faster than marked frequency in specific conditions. The default value is [Enabled]. CPU Thermal Throttling You may select [Enabled] to enable CPU internal thermal control mechanism to keep the CPU from overheating. Enhance Halt State (C1E) All processors support the Halt State (C1). The C1 state is supported through the native processor instructions HLT and MWAIT and requires no hardware support from the chipset. In the C1 power state, the processor maintains the context of the system caches. CPU C3 State Support Use this to enable or disable CPU C3 (ACPI C2) report to OS. CPU C6 State Support Use this to enable or disable CPU C6 (ACPI C3) report to OS. Package C State Support Selected option will program into C State package limit register. The default value is [Disabled]. Internal PLL Overvoltage Use this item to enable/disable CPU Internal PLL Overvoltage Function. OS Real-Time Adjust CPU Ratio Use this item to enable/disable Real-Time Adjust CPU Ratio in OS level. Turbo Boost Power Limit Use this item to adjust Turbo Boost power limit. Configuration options: [Auto] and [Manual]. The default value is [Auto]. Core Current Limit Use this item to add voltage when CPU is in Turbo mode. 68

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68
CPU Power Management Con
fi
guration
Intel SpeedStep Technology
Intel SpeedStep technology is Intel’s new power saving technology. Pro-
cessors can switch between multiple frequencies and voltage points to en-
able power saving. The default value is [Enabled]. Con
fi
guration options:
[Enabled] and [Disabled]. If you install Windows
®
Vista
TM
/ 7 and want to
enable this function, please set this item to [Enabled]. This item will be hid-
den if the current CPU does not support Intel SpeedStep technology.
Intel Turbo Mode Technology
Use this item to enable or disable Intel Turbo Boost Mode Technology.
Turbo Boost Mode allows processor cores to run faster than marked fre-
quency in speci
fi
c conditions. The default value is [Enabled].
CPU Thermal Throttling
You may select [Enabled] to enable CPU internal thermal control
mechanism to keep the CPU from overheating.
Enhance Halt State (C1E)
All processors support the Halt State (C1). The C1 state is supported
through the native processor instructions HLT and MWAIT and requires no
hardware support from the chipset. In the C1 power state, the processor
maintains the context of the system caches.
CPU C3 State Support
Use this to enable or disable CPU C3 (ACPI C2) report to OS.
CPU C6 State Support
Use this to enable or disable CPU C6 (ACPI C3) report to OS.
Package C State Support
Selected option will program into C State package limit register. The
default value is [Disabled].
Internal PLL Overvoltage
Use this item to enable/disable CPU Internal PLL Overvoltage Function.
OS Real-Time Adjust CPU Ratio
Use this item to enable/disable Real-Time Adjust CPU Ratio in OS level.
Turbo Boost Power Limit
Use this item to adjust Turbo Boost power limit. Con
fi
guration options: [Auto]
and [Manual]. The default value is [Auto].
Core Current Limit
Use this item to add voltage when CPU is in Turbo mode.
Please note that enabling this function may reduce CPU voltage and lead to system
stability or compatibility issues with some power supplies. Please set this item to
[Disabled] if above issues occur.