Asus P8H77-M - Manual (Page 82)

Chapter 2: BIOS information 2-18
Intel ® Virtualization Technology [Disabled]
[Enabled] Allows a hardware platform to run multiple operating systems separately
and simultaneously, enabling one system to virtually function as several
systems.
[Disabled] Disables this function.
Hardware Prefetcher [Enabled]
[Enabled] Allows a hardware platform to run multiple operating systems separately
and simultaneously, enabling one system to virtually function as several
systems.
[Disabled] Disables this function.
Adjacent Cache Line Prefetch [Enabled]
[Enabled] Allows a hardware platform to perform adjacent cache line prefetching.
[Disabled] Disables this function.
CPU Power Management Configuration
CPU Ratio [Auto]
Allows you to set the ratio between the CPU Core Clock and the BCLK Frequency. Use <+> and
<-> keys to adjust the ratio. The valid value ranges vary according to your CPU model.
Enhanced Intel SpeedStep Technology [Enabled]
Allows you to enable or disable the Enhanced Intel ® SpeedStep Technology (EIST).
[Disabled] The CPU runs at its default speed.
[Enabled]
The operating system controls the CPU speed.
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.
[Enabled] Allows processor cores to run faster than marked frequency in specific condition.
[Disabled] Disables this function.
CPU C1E [Auto]
Enables or disables the C1E support function. This item should be enabled in order to enable the
Enhanced Halt State. Configuration options: [Auto] [Enabled] [Disabled]
CPU C3 Report [Auto]
Allows you to disable or enable the CPU C3 report to OS. Configuration options: [Auto] [Enabled]
[Disabled]
CPU C6 Report [Auto]
Allows you to disable or enable the CPU C6 report to OS. Configuration options: [Auto] [Enabled]
[Disabled]
2.5.2 PCH Configuration
High Precision Timer [Enabled]
Allows you to enable or disable the High Precision Event Timer.
Configuration options: [Enabled] [Disabled]
Intel ® Rapid Start Technology [Disabled]
Allows you to enable or disable the Intel(R) Rapid Start Technology.
Configuration options: [Enabled] [Disabled]