Chapter 7: BIOS
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DRAM RAPL
RAPL which stands for Running Average Power Limit is a feature that provides
mechanisms to enforce power consumption limits on supported processors The
options are Mode 0, MODE1, and Disabled.
Device Tagging
Select Enabled to support device tagging. The options are Disabled and
Enabled.
Thermal Throttling
Throttling improves reliability and reduces power consumption in the processor
via automatic voltage control during processor idle states. The options are
Disabled and CLTT (Closed Loop Thermal Throttling).
OLTT Peak BW %
Use this feature to set a percentage of the peak bandwidth allowed for OLTT.
Enter a number between 25 to 100 (%).The default setting is 50.
South Bridge
This feature allows the user to confi gure the settings for the Intel PCH chip.
PCH Information
This feature displays the following PCH information.
• Name: This item displays the name of the PCH chip.
• Stepping: This item displays the status of the PCH stepping.
All USB Devices
Select Enabled to enable all onboard USB devices. The options are Enabled
and Disabled.
EHCI Controller 1/ EHCI Controller 2
Select Enabled to enable Enhanced Host Interface (EHCI) Controller 1 or
Controller 2 to improve overall platform performance. The options are Enabled
and Disabled.
Legacy USB Support (Available when USB Functions is not Disabled)
Select Enabled to support legacy USB debvices. Select Auto to disable legacy
support if USB devices are not present. Select Disable to have USB devices
available for EFI (Extensive Firmware Interface) applicatioins only. The settings
are Enabled, Disabled and Auto.
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General