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C9X299-PG300 User Manual
Advanced Power Management Configuration
CPU P State Control
SpeedStep (Pstates)
This feature enables SpeedStep, also known as System Agent Geyserville. The options
are Disabled or Enabled.
EIST PSD Function
This feature controls the EIST PSD Function. The options are HW_ALL, SW_ALL, and
SW_ANY.
Turbo Mode
When EMTTM is enabled, this feature enables processor Turbo Mode. The options are
Disabled or Enabled.
Hardware PM State Control
Hardware P-States
This feature controls how P-states are selected. The Disabled option bases the choice
on OS Request. The "Native Mode"/"Native Mode with No Legacy Support" option bases
the choice on OS guidance. The "Out of Band Mode" option enables autonomous P-state
selection.
CPU C State Control
Autonomous Core C-State
This feature enables Autonomous Core C-State support. The options are Disabled or
Enabled.
CPU C6 report
This feature enables CPU C6(ACPI C3) reporting to the operating system. The options
are Disabled, Enabled, and Auto.
Enhanced Halt State (C1E)
This feature enables Enhanced Halt State (takes effect after reboot). The options are
Disabled or Enabled.
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