User`s manual

Chapter 4: BIOS

4-13

The High Precision Event Timer is used to replace the 8254 Programmable Interval

Timer. The options for this feature are Yes and No.

USB Function

Select Enabled to enable the function of USB devices speciﬁ ed. The settings are

Enabled and Disabled.

Legacy USB Support

This setting allows you to enable support for Legacy USB devices. The settings

are Enabled and Disabled.

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. (*Note: The settings

can be different, depending on the CPU speed.)

Hyper-threading (*Available when supported by the CPU.)

Set to Enabled to use the Hyper-Threading 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.

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.