Supero A1SA2-2550F, Руководство пользователя

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4-8
A1SA2-2750F User’s Manual
CPU C State
The CPU C-State architecture is a processor power management platform devel-
oped by Intel to reduce power consumption by blocking clock cycles to the CPU
during C1 State (Halt State). Select Enabled for CPU C-Sates support. The options
are
Auto
, Enable, and Disable.
. Enhanced Halt State (C1E)
Select Enable for "Enhanced Halt State" (C1E) support, which will significantly re -
duce the CPU's power consumption by reducing the CPU's clock cycle and voltage
during a Halt State. The options are Disable and
Enable .
Monitor/Mwait
If this item is set to Enable, the processor will carry out the "Monitor/Mwait" instruc-
tion by specifying an address that the BIOS should wait (Monitor) or should issue
the command to for the "wait operation" (Mwait) instruction to be performed. The
options are Disable and
Enable .
L1 Prefetcher (Available when supported by the CPU)
If set to Enable, the L1 cache prefetcher will prefetch streams of data and instruc-
tions from the main memory to the L1 cache to improve CPU performance. The
options are Disable and
Enable .
L2 Prefetcher (Available when supported by the CPU)
If set to Enable, the L2 cache prefetcher will prefetch streams of data and instruc-
tions from the L1 cache to the L2 cache to improve CPU performance. The options
are Disable and
Enable .
ACPI 3.0 T-States (Available when supported by the CPU)
Select Enable to support Advanced Configuration and Power Interface (ACPI) 3.0
T-States, which will allow the CPU driver to receive _TPC change notifications on
CPU speed control to improve system cooling. The options are Enable and
Disable
.
Max CPUID Value Limit
Select Enable to set the maximum CPU ID value and to boot the legacy operating
system that cannot support processors with extended CPUID functions. The options
are Enable and
Disable (for the Windows OS).
Execute Disable Bit (Available if supported by the OS & the CPU)
Set to Enable 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 flooding illegal codes to
overwhelm the processor to damage the system during an attack. The options are
Enable and Disable. (Refer to Intel and Microsoft websites for more information.)