Chapter 6: UEFI BIOS
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Hardware PM State Control
Hardware P-States
This feature enables the hardware P-States support.
The options are
Disable
, Native
Mode, Out of Band Mode, and Native Mode with No Legacy Support.
CPU C State Control
Autonomous Core C-State
Use this feature to enable the autonomous core C-State control.
The options are
Dis-
able
and Enable.
CPU C6 report
Select Enable to allow the BIOS to report the CPU C6 State (ACPI C3) to the operating
system. During the CPU C6 State, the power to all cache is turned off.
The options are
Disable, Enable, and
Auto
.
Enhanced Halt State (C1E)
Select Enable to use Enhanced Halt-State technology, which will significantly reduce
the CPU's power consumption by reducing the CPU's clock cycle and voltage during a
Halt-state. The options are Disable and
Enable
.
Package C State Control
Package C State
This feature allows the user to set the limit on the C-State package register. The options
are C0/C1 state, C2 state, C6 (non Retention) state, C6 (Retention) state, No Limit, and
Auto
.
CPU T State Control
Software Controlled T-States
This feature enables the software controlled T-States support. The options are
Disable
and
Enable