MSI MS-9896 Manual do utilizador - Página 35

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CPU Configuration

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Hyper-Threading

The processor uses Hyper-Threadng technology to ncrease transacton

rates and reduces end-user response tmes. The technology treats the two

cores nsde the processor as two logcal processors that can execute nstruc-

tons smultaneously. In ths way, the system performance s hghly mproved.

If you dsable the functon, the processor wll use only one core to execute the

nstructons. Please dsable ths tem f your operatng system doesn't support

HT Functon, or unrelablty and nstablty may occur.

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Execute Disable Bit

Intel's Execute Dsable Bt functonalty can prevent certan classes of mal-

cous "buffer overflow" attacks when combned wth a supportng operatng

system. Ths functonalty allows the processor to classfy areas n memory by

where applcaton code can execute and where t cannot. When a malcous

worm attempts to nsert code n the buffer, the processor dsables code execu-

ton, preventng damage or worm propagaton.

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Limit CPUID Maximum

Ths feature allows you to crcumvent problems wth older operatng systems

that do not support the Intel Pentum 4 processor wth Hyper-Threadng Tech-

nology. When enabled, the processor wll lmt the maxmum CPUID nput

value to 03h when quered, even f the processor supports a hgher CPUID

nput value. When dsabled, the processor wll return the actual maxmum

CPUID nput value of the processor when quered.

MS-9896

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