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YSTEM 6027R-E1CR12N User's Manual
Clock Spread Spectrum
Select Enable to enable Clock Spectrum support, which will allow the BIOS to moni-
tor and attempt to reduce the level of Electromagnetic Interference caused by the
components whenever needed. The options are Disabled and Enabled.
Hyper-threading
Select Enabled to support Intel Hyper-threading Technology to enhance CPU per-
formance. The options are Enabled and Disabled.
Active Processor Cores
Set to Enabled to use a processor's second core and above. (Please refer to Intel's
website for more information.) The options are All, 1 and 2.
Limit CPUID Maximum
This feature allows the user to set the maximum CPU ID value. Enable this function
to boot the legacy operating systems that cannot support processors with extended
CPUID functions. The options are Enabled and Disabled (for the Windows OS).
Execute-Disable Bit Capability (Available if supported by the OS & the CPU)
Select Enabled to enable the Execute Disable Bit which will allow the processor
to designate areas in the system memory where an application code can execute
and where it cannot, thus preventing a worm or a virus from flooding illegal codes
to overwhelm the processor or damage the system during an attack. The default is
Enabled. (Refer to Intel and Microsoft Web sites for more information.)
Intel® AES-NI
Select Enable to use the Intel Advanced Encryption Standard (AES) New Instruc-
tions (NI) to ensure data security. The options are Enabled and Disabled.
Hardware Prefetcher (Available when supported by the CPU)
If set to Enabled, the hardware prefetcher will prefetch streams of data and instruc-
tions from the main memory to the L2 cache to improve CPU performance. The
options are Disabled and Enabled.
Adjacent Cache Line Prefetch (Available when supported by the CPU)
The CPU prefetches the cache line for 64 bytes if this feature is set to Disabled.
The CPU prefetches both cache lines for 128 bytes as comprised if this feature is
set to Enabled.
L1 Data Prefetch (Available when supported by the CPU)
Select Enabled to enable Level 1 data prefetch support to enhance system perfor-
mance. For DP/MP servers, enable or disable this feature for system enhancement
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based on the specifications of the application running in the system at the time. The
options are Disabled and Enabled.
Intel® Virtualization Technology (Available when supported by the CPU)
Select Enabled to support Intel Virtualization Technology, which will allow one
platform to run multiple operating systems and applications in independent parti-
tions, 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
website for detailed information.)
CPU Power Management Configuration
This submenu allows the user to configure the following CPU Power Manage-
ment settings.
Power Technology
Select Energy Efficiency to support power-saving mode. Select Custom to cus-
tomize system power settings. Select Disabled to disable power-saving settings.
The options are Disabled, Energy Efficiency, and Custom.
EIST
EIST (Enhanced Intel SpeedStep Technology) allows the system to automatically
adjust processor voltage and core frequency to reduce power consumption and
heat dissipation. The options are Disabled (GV3 Disabled), and Enabled (GV3
Enabled). (Note: GV3 is Intel Speedstep support used on older platforms.)
Please refer to Intel's website for detailed information.)
Turbo Mode (Available when Intel® EIST Technology is enabled)
Select Enabled to use the Turbo Mode to boost system performance. The options
are Enabled and Disabled.
P-State Coordination
This feature allows the user to change the P-State (Power-Performance State)
coordination type. P-State is also known as "SpeedStep" for Intel processors. Se-
lect HW_ALL to change the P-State coordination type for hardware components
only. Select SW_ALL to change the P-State coordination type for all software
installed in the system. Select SW_ANY to change the P-State coordination
type for a software program in the system. The options are HW_All, SW_ALL,
and SW_ANY.
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Chapter 7: BIOS
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