MSI H87M User Guide - Page 80

Execute Disable Bit [Enabled], Enables Intel Hyper-Threading technology.

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▶ CPU Specifications Press to enter the sub-menu. This sub-menu displays the information of installed CPU. You can also access this information menu at any time by pressing [F4]. Read only. ▶ CPU Technology Support Press to enter the sub-menu. The sub-menu shows what the key features does the installed CPU support. Read only. ▶ MEMORY-Z Press to enter the sub-menu. This sub-menu displays all the settings and timings of installed memory. You can also access this information menu at any time by pressing [F5]. ▶ DIMM1~4 Memory SPD Press to enter the sub-menu. The sub-menu displays the information of installed memory. Read only. ▶ CPU Features Press to enter the sub-menu. ▶ Hyper-Threading Technology [Enabled] The processor uses Hyper-Threading technology to increase transaction rates and reduces end-user response times. Intel Hyper-Threading technology treats the multi cores inside the processor as multi logical processors that can execute instructions simultaneously. In this way, the system performance is highly improved. [Enable] Enables Intel Hyper-Threading technology. [Disabled] Disables this item if the system does not support HT function. ▶ Active Processor Cores [All] This item allows you to select the number of active processor cores. ▶ Limit CPUID Maximum [Disabled] Enables or disables the extended CPUID value. [Enabled] BIOS will limit the maximum CPUID input value to circumvent boot problems with older operating system that do not support the processor with extended CPUID value. [Disabled] Use the actual maximum CPUID input value. ▶ Execute Disable Bit [Enabled] Intel's Execute Disable Bit functionality can prevent certain classes of malicious "buffer overflow" attacks where worms attempt to execute code to damage the system. It is recommended that keeps this item enabled always. [Enabled] Enables NO-Execution protection to prevent the malicious attacks and worms. [Disabled] Disables this function. ▶ Intel Virtualization Tech [Enabled] Enables or disables Intel Virtualization technology. [Enabled] Enables Intel Virtualization technology and allows a platform to run multiple operating systems in independent partitions. The system can function as multiple systems virtually. [Disabled] Disables this function. Chapter 3 BIOS Setup 3-22

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Chapter 3
3-22
BIOS Setup
CPU Specifications
Press <Enter> to enter the sub-menu. This sub-menu displays the information of
installed CPU. You can also access this information menu at any time by pressing
[F4]. Read only.
CPU Technology Support
Press <Enter> to enter the sub-menu. The sub-menu shows what the key features
does the installed CPU support. Read only.
MEMORY-Z
Press <Enter> to enter the sub-menu. This sub-menu displays all the settings and
timings of installed memory. You can also access this information menu at any time by
pressing [F5].
DIMM1~4 Memory SPD
Press <Enter> to enter the sub-menu. The sub-menu displays the information of
installed memory. Read only.
CPU Features
Press <Enter> to enter the sub-menu.
Hyper-Threading Technology [Enabled]
The processor uses Hyper-Threading technology to increase transaction rates
and reduces end-user response times. Intel Hyper-Threading technology treats
the multi cores inside the processor as multi logical processors that can execute
instructions simultaneously. In this way, the system performance is highly
improved.
[Enable]
Enables Intel Hyper-Threading technology.
[Disabled]
Disables this item if the system does not support HT function.
Active Processor Cores [All]
This item allows you to select the number of active processor cores.
Limit CPUID Maximum [Disabled]
Enables or disables the extended CPUID value.
[Enabled]
BIOS will limit the maximum CPUID input value to circumvent
boot problems with older operating system that do not support the
processor with extended CPUID value.
[Disabled]
Use the actual maximum CPUID input value.
Execute Disable Bit [Enabled]
Intel’s Execute Disable Bit functionality can prevent certain classes of malicious
“buffer overflow” attacks where worms attempt to execute code to damage the
system. It is recommended that keeps this item enabled always.
[Enabled]
Enables NO-Execution protection to prevent the malicious attacks
and worms.
[Disabled]
Disables this function.
Intel Virtualization Tech [Enabled]
Enables or disables Intel Virtualization technology.
[Enabled]
Enables Intel Virtualization technology and allows a platform to run
multiple operating systems in independent partitions. The system
can function as multiple systems virtually.
[Disabled]
Disables this function.
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