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Chapter 6: UEFI BIOS
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Select Max Power Efficient to maximize power saving; however, system performance may
be substantially impacted because limited power use decreases the processor frequency.
The options are Maximum Performance, Performance,
Balanced Performance
, Balanced
Power, and Power.
CPU P State Control (Available when Power Technology is set to
Custom)
SpeedStep (P-States)
EIST (Enhanced Intel SpeedStep Technology) allows the system to automatically adjust
processor voltage and core frequency in an effort to reduce power consumption and
heat dissipation. Please refer to Intel website for detailed information. The options are
Disable and
Enable
.
Config (Configuring) TDP (Available when SpeedStep is set to Enable and when
the 2nd Gen Intel Xeon Scalable-SP 8260Y/6240Y/4214Y processor is used)
This Feature allows the user to configure the maximum CPU TDP (Thermal Design
Power) level for the system. The TDP level is subject to chassis and heatsink cooling
restrictions. For proper thermal management, please check the chassis and heatsink
specifications for proper CPU TDP sizing. The options are
Normal
, Level 1, and Level 2.
Intel Speed Select (Available when SpeedStep is set to Enable and when the 2nd
Gen Intel Xeon Scalable-SP 8260Y/6240Y/4214Y processor is used)
This feature allows the user to configure up to two additional base frequency settings
for the processors used in your system as shown in the display below. The options are
Base
, Config 1, and Config 2.
EIST PSD Function (Available when SpeedStep is set to Enable)
Use this item to configure the processor's P-State coordination settings. During a P-State,
the voltage and frequency of the processor will be reduced when it is in operation. This
makes the processor more energy efficient, resulting in further energy gains. The options
are
HW_ALL
, SW_ALL, and SW-ANY.
Turbo Mode (Available when SpeedStep is set to Enable)
Select Enable for processor cores to run faster than the frequency specified by the
manufacturer. The options are Disable and
Enable
.
Activate PBF (Available when SpeedStep is set to Enable and when the 2nd Gen
Intel Xeon Scalable-SP 6252N/6230N/5218N processor is used)
Select Enable to support Prioritized Base Frequency (PBF), which will increase the base
frequency on high-priority cores and decrease the base frequency on low-priority cores
to improve CPU performance. The options are
Disable
and Enable.
Configure PBF (Available when Activate PBF is set to Enable)
Select Enable to allow the BIOS to configure high priority CPU cores as Prioritized Base
Frequency (PBF) so that software programs do not have to configure the PBF settings.
This feature is available when it is supported by the CPUs used in the system. The op-
tions are Disable and
Enable
.