ECS Z77H2-A2X Deluxe, User Manual, Page: 48 / 100

Chapter 3
Z77H2-A2X Deluxe USER MANUAL
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Limit CPUID Maximum (Disabled)
Use this item to enable or disable the maximum CPUID value limit. When supports
Prescott and LGA775 CPUs, enables this to prevent the system from “rebooting”
when trying to install Windows NT 4.0.
Excute Disable Bit (Enabled)
This item allows the processor to classify areas in memory by where application
code can execute and where it cannot. When a malicious worm attempts to insert
code in the buffer, the processor disables code execution, preventing damage or
worm propagation. Replacing older computers with Execute Disable Bit enabled
systems can halt worm attacks, reducing the need for virus related repair.
CPU C3 Report (Disabled)
Use this item to enable or disable CPU C3 (ACPI C2) report to OS.
Enhanced Halt (C1E) (Enabled)
Press <Esc> to return to the Advanced Menu page.
Use this item to enable the CPU energy-saying function when the system is not run-
ning.
Intel Virtualization Technology (Enabled)
When disabled, a VMM cannot utilize the additional hardware capabilities provided
by Vandor Pool Technology.
CPU C6 Report (Enabled)
Use this item to enable or disable CPU C6 (ACPI C3) report to OS.