Norco BIS-6660C, User Manual

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BIS-6660C
User Manual
36
The CPUID instruction of some newer CPUs will return a value greater than 3. The default is
disabled because this problem does not exist in the Windows series operating systems. If you
are using an operating system other than Windows, this problem may occur. To avoid this
problem, please enable this field to limit the return value to 3 or lesser than 3. Default
[Disabled].
Execute Disabled Bit
Execute Disable Bit (EDB) is a hardware-based security feature that introduced to its new
generation CPU by Intel, which can help reduce system exposure to viruses and malicious
code. EDB allows the processor to classify areas in memory where application code can or
cannot execute. To use Execute Disable Bit you must have Windows XP SP2 operating system
to support this function.
Hardware Prefetcher
Whether the processor allows the Intel hardware prefetcher to fetch streams of data and
instruction from memory into the unified second-level cache when necessary. This can be one
of the following:
Disabled—The hardware prefetcher is not used.
Enabled—The processor uses the hardware prefetcher when cache issues are detected. 。
Adjacent Cache Line Prefetch
Whether the processor fetches cache lines in even/odd pairs instead of fetching just the
required line. This can be one of the following:
Disabled—The processor only fetches the required line.
Enabled— The processor fetches both the required line and its paired.
Intel Virtualization Technology
Intel virtualization technology enables to run multiple O/S of the same kind or different kind by
using the same physical platform so as to realize the management and allocation of computer
resources, maximizing the resource utilization.
Power Technology
Power Management