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2.4.2
CPU Configuration
The items in this menu show the CPU-related information that the BIOS automatically
detects.
Ratio CMOS Setting [Auto]
Allows you to set the ratio between CPU Core Clock and the FSB frequency.
Configuration option: [Auto]
• If an invalid ratio is set in CMOS then actual and set values may differ.
• Key in ratio numbers directly.
C1E Support [Enabled]
Allows you to enable or disable Inter CPU Enhanced Halt (C1E) function, a CPU power-
saving function in system halt state. When enable, the CPU core frequency and voltage
will be reduced during the system halt state to decrease power consumption. Configuration
options: [Disabled] [Enabled]
Max CPUID Value Limit [Disabled]
Allows you to determine whether to limit CPUID maximum value. Set this item to [Disabled]
for Windows XP operating system; set this item to [Enabled] for legacy operating system
such as Windows NT4.0. (Default: Disabled)
Configuration options: [Disabled] [Enabled]
Intel(R) Virtualization Tech [Enabled]
Enables or disables Intel
Virtualization Technology allows a platform to run multiple operating systems and applications
in independent partitions. With Virtualization, one computer system can function as multiple
virtual systems. Configuration options: [Enabled] [Disabled]
CPU TM Function [Enabled]
Enables or disables Intel
function. When enabled, the CPU core frequency and voltage are reduced when the CPU
overheats. Configuration options: [Disabled] [Enabled]
Execute-Disable Bit Capability [Enabled]
Enables or disables Intel
of your computer, reducing exposure to viruses and malicious buffer overflow attacks when
working with its supporting software and system.Configuration options: [Disabled] [Enabled]
The following item appears only when you installed an Intel
supports the Enhanced Intel SpeedStep
Intel(R) SpeedStep(TM) Technology [Enabled]
Allows you to use the Enhanced Intel
can adjust the system power settings in the operating system to use the EIST feature. Set
this item to [Disabled] if you do not want to use the EIST. Configuration options: [Enabled]
[Disabled]
2-14
Virtualization Technology. Virtualization enhanced by Intel
®
CPU Thermal Monitor (TM) function, a CPU overheating protection
®
Execute Disable Bit function. This function enhance protection
®
SpeedStep
®
Pentium
®
Technology (EIST).
®
Technology. When set to [Enabled], you
TM
®
4 or later CPU that
®
Chapter 2: BIOS setup
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