Bull Cedoc Bullx R423-E3, Installation And User Manual

Page: 69 / 98

Execute-Disable Bit Capability (Available if supported by the OS & the CPU)
Set to 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 Instructions (NI) to
ensure data security. The options are Enabled and Disabled.
DCU Streamer Prefetcher (Available when supported by the CPU)
Select Enabled to enable the DCU (Data Cache Unit) Streamer Prefetcher which will stream and
prefetch data and send it to the Level 1 data cache to improve data processing and system
performance. The options are Disabled and Enabled.
DCU IP Prefetcher
Select Enabled for DCU (Data Cache Unit) IP Prefetcher support, which will prefetch IP addresses
to improve network connectivity and system performance. 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 partitions, creating multiple "virtual"
systems in one physical computer. The options are Enabled and Disabled.
Note If a change is made to this setting, you will need to reboot the system for the change to take
effect. Refer to Intel’s website for detailed information.
Clock Spread Spectrum
Select Enabled to enable Clock Spectrum support, which will allow the BIOS to monitor and
attempt to reduce the level of Electromagnetic Interference caused by the components whenever
needed. The options are Disabled and Enabled.


CPU Power Management Configuration
This submenu allows the user to configure the following CPU Power Management settings .
Power Technology
Select Energy Efficient to support power-saving mode. Select Custom to customize system
power settings. Select Disabled to disable power-saving settings. The options are Disable,
Energy Efficient and Custom. If Custom is selected, the following options become available:
EIST
EIST (Enhanced Intel SpeedStep Technology) allows the system to automatically
adjust processor voltage and core frequency in an effort to reduce power consumption
and heat dissipation. Please refer to Intel’s web site for detailed information. The
options are Disabled and Enabled.
Chapter 7. BIOS 59