MSI P6N User Guide - Page 51

MS-7350 Mainboard, MPS Table Version, CPU Feature, Execute Disable Bit, Set Limit CPUID MaxVal to 3

Page 51 highlights

MS-7350 Mainboard MPS Table Version This field allows you to select which MPS (Multi-Processor Specification) version to be used for the operating system. You need to select the MPS version supported by your operating system. To find out which version to use, consult the vendor of your operating system. CPU Feature Press to enter the sub-menu and the following screen appears: Execute Disable Bit 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. W hen 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 to limit the listed speed of the processor to older operating systems. CHIP Feature Press to enter the sub-menu and the following screen appears: HPET The HPET (High Precision Event Timers) is a component that is part of the chipset. You can to enable it, and will provide you with the means to get to it via the various ACPI methods. 3-10

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3-10
MS-7350 Mainboard
MPS Table Version
This field allows you to select which MPS (Multi-Processor Specification) version to
be used for the operating system. You need to select the MPS version supported by
your operating system. To find out which version to use, consult the vendor of your
operating system.
CPU Feature
Press <Enter> to enter the sub-menu and the following screen appears:
Execute Disable Bit
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 to limit the listed speed of the processor
to older operating systems.
CHIP Feature
Press <Enter> to enter the sub-menu and the following screen appears:
HPET
The HPET (High Precision Event Timers) is a component that is part of the chipset.
You can to enable it, and will provide you with the means to get to it via the
various ACPI methods.