Asus P8B75-M LX/TW - Manual (Page 56)

Chapter 2: BIOS information 2-12
2.4 Ai Tweaker menu
The Ai Tweaker menu items allow you to configure overclocking-related items.
Be cautious when changing the settings of the Ai Tweaker menu items. Incorrect field
values can cause the system to malfunction.
The configuration options for this section vary depending on the CPU and DIMM model you
installed on the motherboard.
Target DRAM Speed : xxxxMHz
Displays the current DRAM speed.
2.4.1 ASUS MultiCore Enhancement [Enabled]
.
[Enabled] Sets to [Enabled] for maximum performance under XMP/Manual/User- Sets to [Enabled] for maximum performance under XMP/Manual/User-
defined memory frequency mode..
[Disabled] Set to [Disabled] for default core ratio settings.
2.4.2 CPU bus speed: DRAM speed ratio mode [Auto]
Allows you to set the CPU bus speed to DRAM speed ratio mode. Configuration options:
[Auto] [100:100] [100:133]