Supermicro X13DET-B User Manual page 92

Super X13DET-B User's Manual
Activate SST-BF (Available when your CPU supports the Intel Speed Select
function)
Select Enable for Intel Speed Select Technology-Base Frequency support. The options
are Disable and Enable. (SST-BF is the abbreviation for Speed Select Technology-Base
Frequency.)
Configure SST-BF (Available when your CPU supports the Intel Speed Select
function and when "Activate SST-BF" is set to Enable)
When this feature is set to Enable, the system BIOS will configure SST-BF High Priority
Core settings so that system software does not have to configure these settings. The
options are Disable and Enable.
SpeedStep (P-States)
Enhanced Intel SpeedStep Technology (EIST) 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.
EIST PSD Function (Available when "SpeedStep (P-States)" is set to Enable)
This feature reduces the latency that occurs when one P-state changes to another, thus
allowing the transitions to occur more frequently. This will allow for more demand-based
P-state switching to occur based on the real-time energy needs of the applications run-
ning in the system so that the power-to-performance balance can be optimized for energy
efficiency. The options are HW_ALL and SW_ALL.
Turbo Mode (Available when "SpeedStep (P-States)" is set to Enable)
Select Enable to allow the CPU to operate at the manufacturer-defined turbo speed by
increasing CPU clock frequency. This feature is available when it is supported by the
processors used in the system. The options are Disable and Enable.
Hardware PM State Control

Hardware P-States
If this feature is set to Disable, system hardware will choose a P-state setting for the
system based on an OS request. If this feature is set to Native Mode, hardware will
choose a P-state setting based on the OS guidance. If this feature is set to Native Mode
with No Legacy Support, system hardware will choose a P-state setting independently
without OS guidance. The options are Disable, Native Mode, Out of Band Mode, and
Native Mode with No Legacy Support.
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