Datasheet

Chapter 4: BIOS

4-9

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 ratio for the CPU.

The options are: Default, x6, x7, x8, x9, x10 and x11.

Frequency High Ratio (Available when supported by the CPU)

The feature allows the user to set the high ratio internal frequency multiplier for the

Intel SpeedStep CPUs. The settings are: Disabled, +5%, +10%, +15% and +20%.

(Note: If a wrong ratio that is not supported by the CPU is selected, the system

may hang. If this happens, clear the CMOS to recover the system.)

Hyperthreading (Available when supported by the CPU)

Set to Enabled to use the Hyperthreading Technology, which will result in increased

CPU performance. The options are Disabled and Enabled.

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 web site for more information.) The options are Disabled and Enabled.

Single-Logical Processing

When set to Enabled, only one CPU thread/core will be enabled when a multi-core

processor is installed in the system. The options are Enabled and Disabled.

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.

Fast String Operations (Available when supported by the CPU)

Set to Enabled to enable the fast string operations for special CPU instructions.

The options are Disabled and Enabled.

Compatible FPU Code (Available when supported by the CPU)

Set to Enabled to keep the content of the last instruction Operating Code (OPCode)

in the ﬂ oating point (FP) state. The options are Disabled and Enabled.

Split Lock Operation

Set to Enabled to mask alignment check exceptions for split-lock transactions. The

options are Disabled and Enabled.