Supero C7X58, User Manual

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Chapter 4: AMI BIOS
4-7
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.)
Simultaneous Multi-Threading (Available when supported by the CPU)
Set to Enabled to use the Hyper-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 (Available if supported by the CPU)
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® TurboMode Tech (Available if Intel® EIST technology is Enabled)
This feature allows processor cores to run faster than marked frequency in
specific conditions. The options are Enabled and Disabled.
Intel® C-STATE Architecture
C-State, a processor power management architecture developed by Intel, can fur-
ther reduce power consumption from the basic C1 (Halt State) state, which blocks
clock cycles to the CPU. C-State is an idle state, and instructions are not processed
by the CPU. A brief explanation of all the C-States are as follows:
C0 - Active. The CPU is processing instructions.
C1 - Auto Halt. The core clock (CPU) is off. This is the most basic idle state.
Some CPUs support C1E (C1 Enhanced) for lower power consumption.
C2 - Stop Clock. Both the core clock (CPU) and bus clocks (I/O) are off.
C3 - Deep Sleep. The clock generator is off.
C4 - Deeper Deep Sleep. Reduced VCC (Voltage supply).
C6 - Cache Power Off. Power is turned off to all caches.
C7 - Processor Specific. Leaves the initialized application processor in a
processor-specific low C-State. For Intel Core i7 processors, this is the lowest
C-State supported.