MSI X99S GAMING 9 AC - Manual (Page 64)

English
En-50
▶Intel C-State [Enabled]
C-state is a processor power management technology defined by ACPI.
[Auto] This setting will be configured automatically by BIOS.
[Enabled] Detects the idle state of system and reduce CPU power consumption
accordingly.
[Disabled] Disable this function.
▶C1E Support [Disabled]
Enables or disables the C1E function for power-saving in halt state. This item
appears when “Intel C-State” is enabled.
[Enabled] Enables C1E function to reduce the CPU frequency and voltage for
power-saving in halt state.
[Disabled] Disables this function.
▶Package C State limit [Auto]
This item allows you to select a CPU C-state mode for power-saving when system
is idle. This item appears when "Intel C-State" is enabled.
[Auto] This setting will be configured automatically by BIOS.
[C0~C6] The power-saving level from high to low is C6, C2, then C0.
▶EIST [Enabled]
Enables or disables the Enhanced Intel ® SpeedStep Technology. This item will
appear when “Simple/ Advanced Mode” is set to [Simple].
[Enabled] Enables the EIST to adjust CPU voltage and core frequency
dynamically. It can decrease average power consumption and
average heat production.
[Disabled] Disables EIST.
▶Intel Turbo Boost [Enabled]
Enables or disables the Intel ® Turbo Boost. This item is for Simple mode and
appears when the installed CPU supports this function.
[Enabled] Enables this function to boost CPU performance automatically above
rated specifications when system request the highest performance
state.
[Disabled] Disables this function.
▶Long Duration Power Limit (W) [Auto]
Sets the long duration TDP power limit for CPU in Turbo Boost mode.
▶Long Duration Maintained (s) [Default]
Sets the maintaining time for "Long duration power Limit(W)".
▶Short Duration Power Limit (W) [Auto]
Sets the short duration TDP power limit for CPU in Turbo Boost mode.
▶CPU Current Limit (A) [Auto]
Sets maximum current limit of CPU package in Turbo Boost mode. When the
current is over the specified limit value, the CPU will automatically reduce the core
frequency for reducing the current.