Chapter 7: BIOS
Adjacent Cache Line Prefetch (Available when supported by the CPU.)
The CPU fetches the cache line for 64 bytes if this option is set to Disabled. The CPU fetches both cache lines for 128 bytes as comprised if Enabled. The default settings are Disabled for the Intel 5100 Series Processors and Enable for the 5000 Series Processors.
Set Maximum Extended CPUID=3
Select Enabled to set the Maximum Extended CPUID value to 3. The options are Enabled and Disabled.
C1 Enhanced Mode (Available when supported by the CPU.)
Set to Enabled to enable Enhanced Halt State to lower CPU voltage/frequency to prevent overheat. The options are Enabled and Disabled. Note: please refer to Intel’s web site for detailed information.
Intel <R> Virtualization Technology (Available when supported by the CPU.)
Select Enabled to use the feature of Virtualization Technology to allow one platform to run multiple operating systems and applications in independent partitions, creating multiple "virtual" systems in one physical computer. The options are Enabled and Disabled. Note: If there is any change to this setting, you will need to power off and restart the system for the change to take effect. Please refer to Intel’s web site for detailed information.
No Execute Mode Memory Protection (Available when supported by the
CPU.)
Set to Enabled to allow the processor to classify areas in memory where an application code can execute and where it cannot, and thus preventing a worm or a virus from inserting and creating a fl ood of codes to overwhelm the processor or damage the system during an attack.
Note: this feature is available when your OS and your CPU support the function of Execute Disable Bit. The options are Disabled and Enabled. (For more information regarding hardware/software support for this function, please refer to Intel's and Microsoft's web sites.)
I/O Device Configuration
Access the submenu to make changes to the following settings.
KBC Clock Input
This setting allows you to select clock frequency for KBC. The options are 6MHz, 8MHz, 12MHz, and 16MHz.
