Gigabyte GA-EP45-UD3P User Manual page 52

CPU Multi-Threading
Allows you to determine whether to enable all CPU cores and multi-threading function when using an
Intel CPU that supports multi-core technology. This feature only works for operating systems that support
multi-processor mode.
Enabled
Disabled
Limit CPUID Max. to 3
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)
No-Execute Memory Protect
Enables or disables Intel Execute Disable Bit function. This function may enhance protection for the
computer, reducing exposure to viruses and malicious buffer overflow attacks when working with its
supporting software and system. (Default: Enabled)
CPU Enhanced Halt (C1E)
Enables or disables Intel CPU Enhanced Halt (C1E) function, a CPU power-saving function in system
halt state. When enabled, the CPU core frequency and voltage will be reduced during system halt state
to decrease power consumption. (Default: Enabled)
C2/C2E State Support
Allows you to determine whether to let the CPU enter C2/C2E mode in system halt state. When enabled,
the CPU core frequency and voltage will be reduced during system halt state to decrease power con-
sumption. (Default: Disabled)
C4/C4E State Support
Allows you to determine whether to let the CPU enter C4/C4E mode in system halt state. When enabled,
the CPU core frequency and voltage will be reduced during system halt state to descrease power con-
sumption. C4/C4E state is a more enhanced power-saving state than C2/C2E. This item is configurable
only if the C2/C2E State Support option is enabled. (Default: Disabled)
CPU Thermal Monitor 2 (TM2)
Enables or disables Intel CPU Thermal Monitor (TM2) function, a CPU overheating protection function.
When enabled, the CPU core frequency and voltage will be reduced when the CPU is overheated. (Default:
Enabled)
CPU EIST Function
Enables or disables Enhanced Intel SpeedStep Technology (EIST). Depending on CPU loading, Intel
EIST technology can dynamically and effectively lower the CPU voltage and core frequency to decrease
average power consumption and heat production. (Default: Enabled)
Virtualization Technology
Enables or disables Intel Virtualization Technology. Virtualization enhanced by Intel Virtualization
Technology will allow a platform to run multiple operating systems and applications in independent
partitions. With virtualization, one computer system can function as multiple virtual systems. (Default:
Enabled)
(Note) This item is present only if you install a CPU that supports this feature. For more information about
Intel CPUs' unique features, please visit Intel's website.
BIOS Setup
(Note)
Enables all CPU cores and multi-threading capability. (Default)
Enables only one CPU core.
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