4-8
X9DRFR Motherboard User’s Manual
Note
: If there is any change to this setting, you will need to reboot the
system for the change to take effect. Refer to Intel’s website for details.)
CPU Power Management Configuration
This submenu allows the user to configure the following CPU Power Manage
-
ment settings.
Power Technology
Select Energy Efficiency to support power-saving mode. Select Custom to cus
-
tomize system power settings. Select Disabled to disable power-saving settings.
The options are Disabled,
Energy Efficient
, and Custom. If the option is set to
Custom, the following items will display:
EIST (Available when Power Technology is set to Custom)
EIST (Enhanced Intel SpeedStep Technology) allows the system to au-
tomatically adjust processor voltage and core frequency to reduce power
consumption and heat dissipation. The options are Disabled, and
Enabled
.
Turbo Mode (Available when Power Technology is set to Custom and
EIST is set to Enabled)
Select Enabled to use the Turbo Mode to boost system performance. The
options are
Enabled
and Disabled.
C1E Support (Available when Power Technology is set to Custom)
Select Enabled to enable Enhanced C1 Power State to boost system per-
formance. The options are
Enabled
and Disabled.
CPU C3 Report (Available when Power Technology is set to Custom)
Select Enabled 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 Enabled and
Disabled.
CPU C6 Report (Available when Power Technology is set to Custom)
Select Enabled 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
Enabled
and Disabled.
CPU C7 Report (Available when Power Technology is set to Custom)
Select Enabled to allow the BIOS to report the CPU C7 State (ACPI C3) to
the operating system. CPU C7 State is a processor-specific low C-State.
The options are
Enabled
and Disabled.
