Chapter 4: AMI BIOS
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Advanced Power Management Conguration
Power Technology
Select Energy Efcient to support power-saving mode. Select Custom to custom-
ize system power settings. Select Disabled to disable power-saving settings. The
options are Disable, Energy Efcient, and Custom.
Cong TDP
Select Enable to allow the user to congure the Thermal Design Power (TDP)
settings for the system. The TDP refers to the maximum amount of power allowed
for running "real applications" without triggering an overheating event. The options
are Disable and Enable.
CPU P State Control
EIST (P-States)
EIST (Enhanced Intel SpeedStep Technology) allows the system to automati-
cally 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.
Turbo Mode
Select Enable for processor cores to run faster than the frequency specied by
the manufacturer. The options are Disable and Enable.
P-state Coordination
Use this item to congure 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 efcient, resulting in further
energy gains. The options are HW_ALL, SW_ALL and SW-ANY.
CPU C State Control
Package C State limit
Use this item to set the limit on the C-State package register. The options are
C0/1 state, C2 state, C6 (non-Retention) state, and C6 (Retention) state.
CPU C3 Report
Select Enable to allow the BIOS to report the CPU C3 State (ACPI C2) to the
operating system. During the CPU C3 State, the CPU clock generator is turned
off. The options are Enable and Disable.
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