MSI 945P NEO5-F User Guide - Page 46

BIOS Setup, Boot up Num-Lock LED, IOAPIC Function, MPS Table Version, CPU Feature, Execute Bit

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Page 46 highlights

BIOS Setup Boot up Num-Lock LED This setting is to set the Num Lock status when the system is powered on. Setting to [On] will turn on the Num Lock key when the system is powered on. Setting to [Off] will allow users to use the arrow keys on the numeric keypad. Setting options: [On], [Off]. IOAPIC Function This field is used to enable or disable the APIC (Advanced Programmable Interrupt Controller). Due to compliance with PC2001 design guide, the system is able to run in APIC mode. Enabling APIC mode will expand available IRQ resources for the system. Setting options: [Enabled], [Disabled]. 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 Bit Support Execute Bit Support is a robust hardware feature, detectable using the CPUIDinstruction, that protects against malicious software executing code on IA -32 s ys tem s . Set Limit CPUID M axVal to 3 The item allows you to enable and disable the CPU ID maximum value. [Enabled] Set to [Enabled] only when you have Prescott CPU and NT4.0 operating system. [Disabled] Set to [Disabled] if you have operating system other than NT4.0. 3-9

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BIOS Setup
Boot up Num-Lock LED
This setting is to set the Num Lock status when the system is powered on. Setting to
[On] will turn on the Num Lock key when the system is powered on. Setting to [Off]
will allow users to use the arrow keys on the numeric keypad. Setting options: [On],
[Off].
IOAPIC Function
This field is used to enable or disable the APIC (Advanced Programmable Interrupt
Controller). Due to compliance with PC2001 design guide, the system is able to run in
APIC mode. Enabling APIC mode will expand available IRQ resources for the system.
Setting options: [Enabled], [Disabled].
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 Bit Support
Execute Bit Support is a robust hardware feature, detectable using the
CPUIDinstruction, that protects against malicious software executing code on
IA-32systems.
Set Limit CPUID MaxVal to 3
The item allows you to enable and disable the CPU ID maximum value.
[Enabled]
Set to [Enabled] only when you have Prescott CPU and
NT4.0 operating system.
[Disabled]
Set to [Disabled] if you have operating system other
than NT4.0.