Chapter 4: BIOS
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Power & Performance Configuration
CPU - Power Management Control
Use this feature to enable or disable processor power management features.
Boot Performance Mode
This feature allows to select the performance state that the BIOS will set from reset vector.
The options are Power Saving, Max Non-Turbo Performance and
Turbo Performance
.
Intel® SpeedStep™
Intel SpeedStep Technology allows the system to automatically adjust processor voltage
and core frequency to reduce power consumption and heat dissipation. The options are
Disabled and
Enabled
.
Intel® Speed Shift Technology
Use this feature to enable or disable Intel Speed Shift Technology support. When this feature
is enabled, the Collaborative Processor Performance Control (CPPC) version 2 interface
will be available to control CPU P-States. The options are
Disabled
, Out of Band mode
and Native Mode.
Per Core P State OS control mode
Use this feature to enable/disable . Disabling will set Bit 31 = 1 command 0x06. When set,
the hightest core request is used for all other core request. The options are Disabled and
Enabled.
HwP Autonomous Per Core P State
Disabling Autonomous PCPS will request the same value for all cores all the time.The
options are Disabled and
Enabled
.
HwP Autonomous EPP Grouping
Enable EPP grouping autonomous will request the same values for all cores with EPP.
Disabling EPP grouping autonomous will not necessarily request the same values for all
cores with EPP. The options are Disabled and
Enabled
.
Turbo Mode
Select Enable for processor cores to run faster than the frequency specified by the
manufacturer. The options are Disabled and
Enabled
.
Power Limit 1
Use this feature to enable/disable Platform Power Limit 1 programming. If enabled, it
activates the PL1 value to be used by the processor to limit the average power of given
time window. The options are
Disabled
and Enabled.
