Supermicro X8DTN+-F-LR User Manual page 79

Chapter 5: AMI BIOS
Execute-Disable Bit Capability (Available when supported by the OS and
the CPU)
Select Enabled to enable Execute Disable Bit support 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 fl ooding 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.)
Simultaneous Multi-Threading (Available when supported by the CPU)
Set to Enabled to use the Simultaneous Multi-Threading Technology, which will
result in increased CPU performance. The options are Disabled and Enabled.
Active Processor Cores
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 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 (Available when Intel® EIST Technology is enabled)
Select Enabled to use the Turbo Mode to boost system performance. The options
are Enabled and Disabled.
Intel® C-STATE Tech
If enabled, C-State is set by the system automatically to either C2, C3 or C4 state.
The options are Disabled and Enabled.
C3 State
This feature allows the user to decide how the onboard 5500/5600 Series processor
will act at C3 State. The options are Disabled, ACPI C2 and ACPI C3.
C6 State
This feature allows the user to decide how the onboard 5500/5600 Series processor
will act at C6 State. The options are Disabled and Enabled.
C-State package limit setting (Available when Intel® C-State Tech is
enabled)
If 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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