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Power

Use this menu to configure power scheme options.



Table 1. Power details

Item

Options

Description

Power/Performance Bias

  • Platform Controlled (Default)

  • OS Controlled

Power/Performance bias determines how aggressively the CPU will be power managed and placed into turbo. Not all OSes support this feature.

  • Platform Controlled: The system controls the setting.

  • OS Controlled: The operating system is allowed to control it.

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

Platform Controlled Type

  • Maximum Performance

  • Efficiency - Favor Performance (Default)

  • 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 setting are not changeable and will be grayed out. To change the settings, select Choose Operating Mode > Custom Mode.

Workload Configuration

  • Balanced (Default)

  • I/O sensitive

  • I/O sensitive: this option should be used with expansion cards that require high I/O bandwidth when the CPU cores are idle and allow enough frequency for the workload.

ACPI Fixed Power Button

  • Enable (Default)

  • Disable

When the setting is disabled, manually pressing the power button which is located in front of the system won’t execute the Operating System’s Power Button Policy such as shutdown, turn off monitor, etc. In addition, “Shut down OS and ...” options under the iMM Server Power Actions feature will be disabled.