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Chapter 4: BIOS
Advanced Processor Options
Access the submenu to make changes to the following settings.
CPU Speed
This is a display that indicates the speed of the installed processor.
Frequency Ratio (Available when supported by the CPU.)
The feature allows the user to set the internal frequency multiplier for the CPU. The
options are: Default, x12, x13, x14, x15, x16, x17 and x18.
Core-Multi-Processing (Available when supported by the CPU.)
Set to Enabled to use a processor's Second Core and beyond. (Please refer to Intel's
website for more information.) The options are Disabled and Enabled.
Machine Checking (Available when supported by the CPU.)
Set to Enabled to activate the function of Machine Checking and allow the CPU to
detect and report hardware (machine) errors via a set of model-specifi c registers
(MSRs). The options are Disabled and Enabled.
Thermal Management 2 (Available when supported by the CPU.)
Set to Enabled to use Thermal Management 2 (TM2) which will lower CPU voltage
and frequency when the CPU temperature reaches a predefi ned overheat threshold.
Set to Disabled to use Thermal Manager 1 (TM1), allowing CPU clocking to be
regulated via CPU Internal Clock modulation when the CPU temperature reaches
the overheat threshold.
C1/C2 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 website for detailed information.)
Execute Disable Bit (Available when supported by the CPU and the OS.)
Set to Enabled to enable Execute Disable Bit and 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, please refer to
Intel's and Microsoft's websites.
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
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