Asus P8B-E/4L - Manual (Page 77)

ASUS P8B-E/4L 4-17
Limit CPUID Maximum [Disabled]
Setting this item to [Enabled] allows legacy operating systems to boot even without
support for CPUs with extended CPUID functions.
Configuration options: [Disabled] [Enabled]
Execute Disable Bit [Enabled]
Allows you to enable or disable the No-Execution Page Protection Technology.
Setting this item to [Disabled] forces the XD feature flag to always return to zero (0).
Configuration options: [Disabled] [Enabled]
Intel Virtualization Tech [Enabled]
The Intel ® Virtualization Technology allows a hardware platform to run multiple
operating systems separately and simultaneously, enabling one system to virtually
function as several systems. Configuration options: [Disabled] [Enabled]
Enhanced Intel SpeedStep Technology [Enabled]
Allows you to enable or disable the Enhanced Intel ® SpeedStep Technology (EIST).
Configuration options: [Disabled] [Enabled]
Turbo Mode [Enabled]
This item appears only when you set the Enhanced Intel SpeedStep Technology
item to [Enabled] and allows you to enable or disable the Intel ® Turbo Mode
Technology. Configuration options: [Disabled] [Enabled]
CPU C1E [Enabled]
[Enabled] Enables the C1E support function. This item should be enabled in
order to enable the Enhanced Halt State.
[Disabled] Disables this function.
CPU C3 Report [Enabled]
Allows you to disable or enable the CPU C3 report to OS.
CPU C6 Report [Enabled]
Allows you to disable or enable the CPU C6 report to OS.