5015M-UR, 5015M-U, 5015M-NTR, 5015M-NT ServerBoard User's Manual

Chapter 7: BIOS

7-11

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 Conﬁ guration

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.