Asus P8H77-I manual Memory Frequency Auto, IGPU Max. Frequency, GPU Boost OK, Dram Timing Control

Target CPU Turbo-Mode Speed : xxxxMHz

Displays the current CPU Turbo-Mode speed.

Target DRAM Speed : xxxxMHz

Displays the current DRAM speed.

2.4.1Memory Frequency [Auto]

Allows you to set the memory operating frequency. Configuration options: [Auto] [DDR3- 1066MHz] [DDR3-1333MHz] [DDR3-1600MHz]

Selecting a very high memory frequency may cause the system to become unstable! If this happens, revert to the default setting.

2.4.2iGPU Max. Frequency [xxx]

Allows you to set the iGPU maximum frequency. The values range from xxxxMHz (by CPU) to 3000MHz with a 50MHz interval. Use <+>/<-> to adjust the value.

2.4.3GPU Boost [OK]

[OK]	Select [OK] to automatically optimize the iGPU frequency.
[Cancel]	Select [Cancel] to use a fixed iGPU frequency.

2.4.4DRAM Timing Control

The sub-items in this menu allow you to set the DRAM timing control features. Use the <+> and <-> keys to adjust the value. To restore the default setting, type [auto] using the keyboard and press <Enter>.

Changing the values in this menu may cause the system to become unstable! If this happens, revert to the default settings.

2.4.5CPU Power Management

The sub-items in this menu allow you to set the CPU ratio and features.

CPU Ratio [Auto]

Allows you to manually adjust the maximum non-turbo CPU ratio. Use <+> and <-> keys or the numeric keypad to adjust the value. 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]	Disables this function.
[Enabled]	The operating system dynamically adjusts the processor voltage and
	core frequency which may result in decreased average consumption and
	decreased average heat production.

Turbo Mode [Enabled]

This item appears only when you set the previous item to [Enabled].

[Enabled]	Allows processor cores to run faster than marked frequency in specific
	conditions.
[Disabled]	Disables this function.

2-14 Chapter 2: BIOS information