MSI Z97 GAMING 9 AC Manual - Manual (Page 87)

3-22 BIOS Setup 3-23 BIOS Setup
Chapter 3
3-22 BIOS Setup 3-23 BIOS Setup
Limit CPUID Maximum [Disabled]
Enables or disables the extended CPUID value.
[Enabled] BIOS will limit the maximum CPUID input value to circumvent
boot problems with older operating system that do not support the
processor with extended CPUID value.
[Disabled] Use the actual maximum CPUID input value.
Execute Disable Bit [Enabled]
Intel’s Execute Disable Bit functionality can prevent certain classes of malicious
“buffer overflow” attacks where worms attempt to execute code to damage the
system. It is recommended that keeps this item enabled always.
[Enabled] Enables NO-Execution protection to prevent the malicious attacks
and worms.
[Disabled] Disables this function.
Intel Virtualization Tech [Enabled]
Enables or disables Intel Virtualization technology.
[Enabled] Enables Intel Virtualization technology and allows a platform to run
multiple operating systems in independent partitions. The system
can function as multiple systems virtually.
[Disabled] Disables this function.
Hardware Prefetcher [Enabled]
Enables or disables the hardware prefetcher (MLC Streamer prefetcher).
[Enabled] Allows the hardware prefetcher to automatically pre-fetch data
and instructions into L2 cache from memory for tuning the CPU
performance.
[Disabled] Disables the hardware prefetcher.
Adjacent Cache Line Prefetch [Enabled]
Enables or disables the CPU hardware prefetcher (MLC Spatial prefetcher).
[Enabled] Enables adjacent cache line prefetching for reducing the cache
latency time and tuning the performance to the specific application.
[Disabled] Enables the requested cache line only.
CPU AES Instructions [Enabled]
Enables or disables the CPU AES (Advanced Encryption Standard-New
Instructions) support. This item appears when a CPU supports this function.
[Enabled] Enables Intel AES support.
[Disabled] Disables Intel AES support.
Intel Adaptive Thermal Monitor [Enabled]
Enables or disables the Intel adaptive thermal monitor function to protect the CPU
from overheating.
[Enabled] Throttles down the CPU core clock speed when the CPU is over the
adaptive temperature.
[Disabled] Disables this function.
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