User Guide

4-16
Chapter 4: BIOS Setup
4-Core Ratio Limit [Auto]
Select [Auto] to apply the CPU default Turbo Ratio setting or manually
assign a 4-Core Limit value that must be higher than or equal to the 3-Core
Ratio Limit.
If you assign a value for more Core Ratio Limit, do not set the less Core Ratio Limit to
[Auto].
DRAM Odd Ratio Mode [Enabled]
This item allows you to enable or disable the odd ratio mode for better granularity.
Conguration options: [Disabled] [Enabled]
EPU Power Saving Mode [Disabled]
The ASUS EPU (Energy Processing Unit) sets the CPU in its minimum power consumption
settings.
Conguration options: [Disabled] [Enabled]
CPU SVID Support [Auto]
Disable this item to stop the CPU from communicating with the external voltage regulator.
Conguration options: [Auto] [Disabled] [Enabled]
DRAM Timing Control
The subitems in this menu allow you to set the DRAM timing control features. Use the <+>
or <-> keys to adjust the value. To restore the default setting, type [auto] using the keyboard
and press the <Enter> key.
Changing the values in this menu may cause the system to become unstable! If this
happens, revert to the default settings.
Primary Timings
DRAM CAS# Latency [Auto]
Conguration options: [Auto] [1] – [31]
DRAM RAS# to CAS# Delay [Auto]
Conguration options: [Auto] [1] – [31]
DRAM RAS# ACT Time [Auto]
Conguration options: [Auto] [1] – [63]
DRAM COMMAND Rate [Auto]
Conguration options: [Auto] [1] – [2]