Power

This menu allows you to configure power scheme options.

Table 1. Power details
Item	Options	Description
Power/Performance Bias	Platform Controlled OS Controlled	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]: The OS controls the setting. 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.
Platform Controlled Type	Maximum Performance Efficiency - Favor Performance Efficiency - Favor Power Minimal Power	[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.
Workload Configuration	Balanced I/O sensitive	[I/O sensitive] is recommended for expansion cards that require high I/O bandwidth when the CPU cores are idle to allow enough frequency for the workload. Balanced is the default setting.
ACPI Fixed Power Button	Enabled Disabled	Enable/Disable ACPI Fixed Power Button. When disabled, physically pressing the power button on front of the system will not execute the OS's Power Button Policy such as shutdown and turn off monitor. In addition, the "Shut down OS and ..." options under the iMM Server Power Actions feature will be disabled. Enabled is the default setting.
PCIe Power Brake Note This item is platform-dependent. Confirm with platform design guide for details.	Reactive Proactive Disabled	PCIe Power Brake quickly reduces the power consumption and performance of high powered PCIe devices. Performances of low-power PCIe devices are not impacted by this setting. A high-power PCIe device refers to the one with a rated power of 75 W TDP or greater.
ASPM Note This item is platform-dependent. Confirm with platform design guide for details.	Auto Disabled	[Auto] will enable ASPM on PCIe endpoint adapters that support it. [Disabled] will disable ASPM for all PCIe endpoints. Disabled is the default setting.

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