Supermicro Supero X8DAE User Manual page 67

Chapter 4: AMI BIOS
Execute-Disable Bit Capability (Available when supported by the OS and
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 Websites for more information.)
Intel AES-NI (Available when supported by the OS and the CPU)
If this feature is set to Enabled, Intel AES-NI will add new encryption features to
help accelerate AES SW application, providing code authorization and signature
verification to improve system performance. The default is Disabled. (Refer to Intel
and Microsoft Web Sites for more information.)
Simultaneous Multi-Threading (Available when supported by the CPU)
Select Enabled to use the Simultaneous Multi-Threading Technology, which will
result in increased CPU performance. The options are Disabled and Enabled.
Active Processor Cores
Select Enabled to use a processor's second core and beyond. (Please refer to Intel's
website for more information.) The options are All, 1 and 2.
Intel® EIST Technology
EIST (Enhanced Intel SpeedStep Technology) allows the system to automatically
adjust processor voltage and core frequency in an effort to reduce power consump-
tion and heat dissipation. Please refer to Intel's web site for detailed information.
The options are Disable (Disable GV3) and Enable (Enable GV3).
Intel® Turbo Boost
Select Enabled to allow the processor cores to run faster than normal under special
circumstances to improve performance. The options are Disable and Enabled.
Intel® C-STATE Tech
If this feature is set to Enabled, C-State is set by the system automatically to either
C2, C3 or C4 state. The options are Disabled and Enabled.
C-State Package Limit Setting (Available when Intel® C-State Tech is
enabled)
If this item is set to Auto, the AMI BIOS will automatically set the limit on the C-State
package register. The options are Auto, C1, C3, C6 and C7.
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