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Generally, the Thermal Monitor should not be activated immediately on booting as the
processor will be under a heavy load during the booting process. Lower delay time
unnecessarily reduces the processor's performance during the booting up process.
Therefore, to ensure optimal booting performance, the activation of the Thermal Monitor must
be delayed for a set period of time.
It is recommended that you set this BIOS feature to the lowest value (in minutes) that exceeds
the time it takes to fully boot up your computer. For example, if it takes 5 minutes to fully boot
up your system, you should select 8 Minutes.
You should not select a delay value that is unnecessarily long. Without the Thermal Monitor,
your processor may heat up to a critical temperature (approximately 135°C), at which point the
thermal sensor shuts down your processor by removing the core voltage within 0.5 seconds.
► Limit CPUID MaxVal
This item is used to enable or disable CPUID maximum value limit configuration. Set Limit
CPUID MaxVal to 3. Should be [Disabled] for WinXP.
► C1E Function
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.
► 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.
► Virtualization Technology
Virtuali�ation (i.e. Intel® Vanderpool Technology) allows a platform to run multiple operating
systems and applications in independent partitions or “containers.” One physical compute
system can function as multiple “virtual” systems. Vanderpool Technology can help improve
future virtuali�ation solutions. This item will be displayed only when the CPU is supporting this
feature and the setting is used to enable/disable it.
► EIST Function
You can select the EIST (Processor Power Management, PPM) through this item. Setting
values: [Enabled] (For fully support ACPI OS, e.g. Windows XP, Vista); [Disabled] (For legacy
�S, e.g. �indows2000);
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
requirements must be met, including CPU, chipset, motherboard, BIOS and operation
system. Please refer to Intel website for more information.
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