User manual

AIMB-780 User Manual 42
Ration CMOS Setting
Allows you to set the ratio between the CPU Core Clock and the BCLK Frequency.
The valid value ranges vary according to your CPU model.
Hardware Prefetcher
Hardware Prefetcher is a technique that fetches instructions and/or data from mem-
ory into the CPU cache memory well before the CPU needs it, so that it can improve
the load-to-use latency. You may choose to enable or disable it.
Adjacent Cache Line Prefetch
The processor fetches the currently requested cache line, as well as the subsequent
cache line. This reduces the cache latency by making the next cache line immedi-
ately available if the processor requires it as well.
MPS and ACPI MADT ordering
MADT refers to Multiple APIC Description Table.
Max CPUID Value Limit
This item allows you to limit CPUID maximum value.
Intel® Virtualization Tech
Intel Virtualization Technology (Intel VT) is a set of hardware enhancements to Intel
server and client platforms that provide software-based virtualization solutions. Intel
VT allows a platform to run multiple operating systems and applications in indepen-
dent partitions, allowing one computer system to function as multiple virtual systems.
Execute-Disable Bit Capability
This item allows you to enable or disable the No-Execution page protection technol-
ogy.
Intel® HT Technology
This item allows you to enable or disable Intel Hyper Threading technology.
A20M
This makes legacy OS compatible with some APs.
Intel® SpeedStep™ tech
When set to disabled, the CPU runs at its default speed, when set to enabled, the
CPU speed is controlled by the operating system.
Intl® TurboMode tech
Turbo mode allows processor cores to run faster than marked frequency for specific
conditions.
Inte® C-STATE tech
This function saves CPU power consumption when in system halt state. When
enabled, the CPU speed and voltage will be reduced during system halt state to save
power consumption. You may choose to enable or disable it.