43
3
CPU Features
► PPM
You can enable PPM (Processor Power Management) through this item.
► EIST
You can select the EIST through this item. Setting values: [Native Mode] (For fully support
ACPI OS, e.g. Windows XP, Vista); [SMM Mode] (For legacy OS).
► CxE
CxE represents Enhanced HALT State. It is a feature which Intel CPU uses to reduce power
consumption when in halt state. User can select the lowest C state supported according to
CPU and MB. Options are: Auto, Disable, C1, C1E, C3 and C6.
► Execute Disable Bit
This item is used to enable/disable the Execute Disable Bit feature.
Intel's Execute Disable Bit functionality can help prevent certain classes of malicious buffer
overflow attacks when combined with a supporting operating system.
Execute Disable Bit allows the processor to classify areas in memory by where application
code can execute and where it cannot. When a malicious worm attempts to insert code in the
buffer, the processor disables code execution, preventing damage and worm propagation.
Replacing older computers with Execute Disable Bit-enabled systems can halt worm attacks,
reducing the need for virus-related repairs. By combining Execute Disable Bit with anti-virus,
firewall, spyware removal, e-mail filtering software, and other network security measures, IT
managers can free IT resources for other initiatives.
Phoenix - AwardBIOS CMOS Setup Utility
CPU Features
PPM
Enabled
Item Help
EIST
Enabled
CxE
Auto
Menu Level ►
Execute Disable Bit
Enabled
Virtualization
Enabled
PPM Enable/
Hyper Threading
Enabled
Disable
Active Processor Cores
All
↑↓→←:Move Enter:Select +/-/PU/PD:Value F10:Save ESC:Exit F1:General Help
F5:Previous Values F7:Optimized Defaults
Enabled
Enhanced Intel SpeedStep® technology (EIST) allows the system to dynamically adjust
processor voltage and core frequency, which can result in decreased average power
consumption and decreased average heat production. There are some system require-
ments must be met, including CPU, chipset, motherboard, BIOS and operation system.
Please refer to Intel Website for more information.
CA
UT
IO
N
!
