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CPU Configuration
► C1E Support
C1E represents Enhanced HALT State. It is a feature which Intel CPU uses to reduce power
consumption when in halt state. C1E drops the CPU's multiplier and voltage to lower levels
when a HLT (halt) command is issued. This item is used to enable/disable the C1E support.
► Limit CPUID MaxVal
This item is used to enable or disable CPUID maximum value limit configuration. Set Limit
CPUID MaxVal to 3, it should be [Disabled] for WinXP.
► 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.
► EIST Function
You can enable/disable the EIST (Processor Power Management, PPM) through this item.
Enhanced Intel SpeedStep® technology (EIST) allows the system to dynamically
adjust processor voltage and core frequency, which can result in decreased aver-
age power consumption and decreased average heat production. There are some
system requirements must be met, including CPU, chipset, motherboard, BIOS and
operation system. Please refer to Intel website for more information.
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CMOS Setup Utility - Copyright (C) 1985-2008, American Megatrends, Inc.
CPU Configuration
CPU Configuration
Help Item
Module Version : 3F.0F
This should be enabled
Manufacturer : Intel
in order to enable or
Intel (R) Pentium (R) Dual CPU E2220 @ 2.40GHz
disable the “Enhanced
Frequency :1.40GHz
Halt State”.
FSB Speed :800MHz
Cache L1 :64KB
Cache L2 :1024KB
Ratio Status :Unlocked (Min:06, Max:12)
Ratio Actual Value: 7
C1E Support
[Enabled]
Limit CPUID MaxVal
[Disabled]
Execute Disable Bit
[Enabled]
EIST Function
[Enabled]
↑↓←→:Move Enter:Select +/-/:Value F10:Save ESC:Exit F1:General Help
F9:Optimized Defaults
[Enabled]
