MSI X58Pro-E User Guide - Page 51

CPU: An Intel

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MS-7522 ▶ Primary Graphic's Adapter This setting specifies which graphic card is your primary graphics adapter. ▶ PCI Latency Timer This item controls how long each PCI device can hold the bus before another takes over. When set to higher values, every PCI device can conduct transactions for a longer time and thus improve the effective PCI bandwidth. For better PCI performance, you should set the item to higher values. ▶ CPU Feature Press to enter the sub-menu and the following screen appears: ▶ Hyper-Threading Technology The processor uses Hyper-Threading technology to increase transaction rates and reduces end-user response times. The technology treats the two cores inside the processor as two logical processors that can execute instructions simultaneously. In this way, the system performance is highly improved. If you disable the function, the processor will use only one core to execute the instructions. Please disable this item if your operating system doesn't support HT Function, or unreliability and instability may occur. Important Enabling the functionality of Hyper-Threading Technology for your computer system requires ALL of the following platform Components: • CPU: An Intel® Pentium® 4 Processor with HT Technology; • Chipset: An Intel® Chipset that supports HT Technology; • BIOS: A BIOS that supports HT Technology and has it enabled; • OS: An operating system that supports HT Technology. For more information on Hyper-threading Technology, go to: www.intel.com/info/hyperthreading ▶ Execute Bit Support Intel's Execute Disable Bit functionality can prevent certain classes of malicious "buffer overflow" attacks when combined with a supporting operating system. This functionality 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 or worm propagation. ▶ Set Limit CPUID MaxVal to 3 The Max CPUID Value Limit is designed limit the listed speed of the processor to older operating systems. 3-9

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3-9
MS-7522
Pr±mary Graph±c’s Adapter
Th±s sett±ng spec±fies wh±ch graph±c card ±s your pr±mary graph±cs adapter.
PCI Latency T±mer
Th±s ±tem controls how long each PCI dev±ce can hold the bus before another takes
over. When set to h±gher values, every PCI dev±ce can conduct transact±ons for a longer
t±me and thus ±mprove the effect±ve PCI bandw±dth. For better PCI performance, you
should set the ±tem to h±gher values.
CPU Feature
Press <Enter> to enter the sub-menu and the follow±ng screen appears:
▶
▶
▶
Hyper-Thread±ng Technology
The processor uses Hyper-Thread±ng technology to ±ncrease transact±on rates and
reduces end-user response t±mes. The technology treats the two cores ±ns±de the
processor as two log±cal processors that can execute ±nstruct±ons s±multaneously.
In
th±s way, the system performance ±s h±ghly ±mproved. If you d±sable the funct±on, the
processor w±ll use only one core to execute the ±nstruct±ons. Please d±sable th±s ±tem
±f your operat±ng system doesn’t support HT Funct±on, or unrel±ab±l±ty and ±nstab±l±ty
may occur.
Important
Enabl±ng the funct±onal±ty of Hyper-Thread±ng Technology for your computer system
requ±res ALL of the follow±ng platform Components:
CPU: An Intel
®
Pent±um
®
4 Processor w±th HT Technology;
Ch±pset: An Intel
®
Ch±pset that supports HT Technology;
BIOS: A BIOS that supports HT Technology and has ±t enabled;
OS: An operat±ng system that supports HT Technology.
For more ±nformat±on on Hyper-thread±ng Technology, go to:
www.±ntel.com/±nfo/hyperthread±ng
Execute B±t Support
Intel’s Execute D±sable B±t funct±onal±ty can prevent certa±n classes of mal±c±ous
“buffer overflow” attacks when comb±ned w±th a support±ng operat±ng system. Th±s
funct±onal±ty allows the processor to class±fy areas ±n memory by where appl±cat±on
code can execute and where ±t cannot. When a mal±c±ous worm attempts to ±nsert
code ±n the buffer, the processor d±sables code execut±on, prevent±ng damage or
worm propagat±on.
Set L±m±t CPUID MaxVal to 3
The Max CPUID Value L±m±t ±s des±gned l±m±t the l±sted speed of the processor to
older operat±ng systems.
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