Operating Modes

Description

Select the operating mode based on your preference.

Power savings and performance are highly dependent on hardware and software running on the system. The selected operating mode will automatically change low-level settings per the mode selected and will not allow them to be changed individually. Switch to 'Custom' to set low level settings individually. [Efficiency - Favor Performance] default operating mode is comparable to Intel's Optimized Power Mode (OPM).

Select the desired memory speed mode.

[Maximum performance] mode maximizes performance. [Balanced] mode offers a balance between performance and power. [Minimal power] mode maximizes power savings.

When a preset mode is selected, the low-level settings are not changeable and will be grayed out. To change the settings, choose [Custom Mode] for "Choose Operating Mode" in "Operating Modes" located under "System Setting" submenu.

Max Performance is the default setting.

[Disabled] provides maximum performance but minimum power savings. [Automatic] is suitable for most applications.

When a preset mode is selected, the low-level settings are not changeable and will be grayed out. To change the settings, choose System Settings > Operating Modes > Choose Operating Mode >.Custom Mode.

Disabled is the default setting.

Select the method to control CPU P-states (performance states).

[None] disables all P-states and the CPUs run at either their rated frequency or in turbo mode (if "Turbo Mode" is enabled).

[Legacy]: The CPU P-states will be presented to the OS and the OS power management (OSPM) will directly control which P-state is selected.

[Autonomous]: The P-states are controlled fully by system hardware. No P-state support is required in the OS or VM.

[Cooperative] is a combination of [Legacy] and [Autonomous]. The P-states are still controlled by hardware but the OS can provide hints to the hardware for P-state limits, indicating the desired setting.

When a preset mode is selected, the low-level settings are not changeable and will be grayed out. To change the settings, choose System Settings > Operating Modes > Choose Operating Mode > Custom Mode.

Autonomous is the default setting.

[Enabled]: Save power by halting idle CPU cores. To use this feature, an OS that supports C1E state must be installed. Setting change takes effect after the next reboot.

When a preset mode is selected, the low-level settings are not changeable and will be grayed out. To change the settings, choose [Custom Mode] for "Choose Operating Mode" in "Operating Modes" and [Legacy]/[Disabled] in "C-States" located under "System Setting" submenu.

C1E status is changeable only when "C-states" is not [Autonomous].

Enabled is the default setting.

Select the desired CPU UPI link frequency.

[Maximum Performance] mode maximizes performance. [Balanced] mode offers a balance between performance and power. [Minimal Power] mode maximizes power savings.

When a preset mode is selected, the low-level settings are not changeable and will be grayed out. To change the settings, choose System Settings > Operating Modes > Choose Operating Mode >.Custom Mode.

Disabling one of the CPU UPI links can save power. To achieve the maximum performance, all UPI links should be enabled.

When a preset mode is selected, the low-level settings are not changeable and will be grayed out. To change the settings, choose System Settings > Operating Modes > Choose Operating Mode > Custom Mode.

[Enabled] can boost the overall CPU performance when all CPU cores are not being fully utilized. A CPU core can run above its rated frequency for a short period of time when it is in turbo mode.

When a preset mode is selected, the low-level settings are not changeable and will be grayed out. To change the settings, choose System Settings > Operating Modes > Choose Operating Mode > Custom Mode.

Enabled is the default setting.

[Enabled]: The CPU's optimal turbo frequency will be tuned dynamically based on CPU utilization. This item is also influenced by "Power/Performance Bias".

When a preset mode is selected, the low-level settings are not changeable and will be grayed out. To change the settings, choose [Custom Mode] for "Choose Operating Mode" in "Operating Modes" and [Enabled] in "Turbo Mode" located under "System Setting" submenu.

Enabled is the default setting.

C-states reduce CPU idle power.

[Legacy]: The OS initiates the C-state transitions. ACPI C1/C2/C3 map to Intel C1/C3/C6.

[Autonomous]: HALT and C1 request get converted to C6 requests in hardware.

When a preset mode is selected, the low-level settings are not changeable and will be grayed out. To change the settings, choose System Settings > Operating Modes > Choose Operating Mode >.Custom Mode.

Autonomous is the default setting.

Power/Performance Bias determines how aggressively the CPU will be power managed and placed into turbo.

[Platform Controlled]: The system controls the setting.

[OS Controlled] allows the OS to control it. Not all OSs support this feature.

When a preset mode is selected, the low-level settings are not changeable and will be grayed out. To change the settings, choose System Settings > Operating Modes > Choose Operating Mode > Custom Mode.

Platform Controlled is the default setting.

[Maximum Performance] allows the most aggressive use of turbo and power management functions are disabled, thereby increasing power consumption.

[Minimal Power] disables turbo and maximizes the use of power management features.

When a preset mode is selected, the low-level settings are not changeable and will be grayed out. To change the settings, choose System Settings > Operating Modes > Choose Operating Mode > Custom Mode.

Efficiency - Favor Performance is the default setting.

Enable/Disable ADDDC Sparing.

[Adaptive] improves the performance of applications with a highly localized memory access pattern; [Closed] benefits applications that access memory more randomly.

Adaptive is the default setting.

Enabled is the default setting.