Supermicro X11DPH-I User Manual page 79

AES-NI
Select Enable to use the Intel Advanced Encryption Standard (AES) New Instructions (NI) to
ensure data security. The options are Enable and Disable.
Advanced Power Management Confi guration

Power Technology
Select Energy Effi cient to support power-saving mode. Select Custom to customize system
power settings. Select Disabled to disable power-saving settings. The options are Disable,
Energy Effi cient, and Custom.
Power Performance Tuning (Available when "Power Technology" is set to Custom)
Select BIOS to allow the system BIOS to confi gure the Power-Performance Tuning Bias
setting. The options are BIOS Controls EPB and OS Controls EPB.
ENERGY_PERF_BIAS_CFG Mode (ENERGY PERFORMANCE BIAS
CONFIGURATION Mode) (Available when "Power Performance Tuning" is set to
BIOS Controls EPB)
Use this feature to confi gure the optimal operation setting for your machine by achieving
the desired system performance level and energy saving (effi ciency) level at the same time.
Select Maximum Performance to maximize system performance to its highest potential;
however, this may consume maximal amount of power as energy is needed to fuel the
processor frequency. (In other words, system performance is gained at the cost of system
power effi ciency, depending on the workload.) Select Maximum Power Effi ciency to minimize
power use; however, system performance will be greatly impacted as the result of power
saving. The options are Maximum Performance, Performance, Balanced Performance,
Balanced Power, Power, and Max (Maximum) Power Effi cient.
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's website for detailed information. The options are Disable
and Enable.
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Chapter 4: UEFI BIOS