Instruction Manual
2-12 ASUS P8Q77-M2
2.4 Ai Tweaker menu
The Ai Tweaker menu items allow you to congure overclocking-related items.
Be cautious when changing the settings of the Ai Tweaker menu items. Incorrect eld
values can cause the system to malfunction.
The conguration options for this section vary depending on the CPU and DIMM model you
installed on the motherboard.
2.4.1 CPU bus speed : DRAM speed ratio mode [Auto]
Allows you to set the CPU bus speed to DRAM speed ratio mode.
[Auto] DRAM speed is set to the optimized settings.
[100:133] The CPU bus speed to DRAM speed ratio is set to 100:133.
[100:100] The CPU bus speed to DRAM speed ratio is set to 100:100.
2.4.2 Memory Frequency [Auto]
Allows you to set the memory operating frequency. Conguration options: [Auto] [DDR3-
800MHz] [DDR3-1066MHz] [DDR3-1333MHz] [DDR3-1400MHz] [DDR3-1600MHz]
[DDR3-1800MHz] [DDR3-1866MHz] [DDR3-2000MHz] [DDR3-2133MHz] [DDR3-2400MHz]
[DDR3-2600MHz] [DDR3-2666MHz] [DDR3-2800MHz]
Selecting a very high memory frequency may cause the system to become unstable! If this
happens, revert to the default setting.