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Chapter 3: BIOS setup
Chapter 3
Internal PLL Overvoltage [Auto]
Allows you to enable the internal PLL voltage for K-SKU CPUs to get the extreme
overclocking capability.
Configuration options: [Auto] [Enabled] [Disabled]
BCLK Frequency : DRAM Frequency Ratio [Auto]
Allows you to set the BCLK Frequency to DRAM Frequency ratio.
[Auto] The ratio will be set to the optimized settings.
[100:100] The BCLK Frequency to DRAM Frequency ratio will be set to 100:100.
[100:133] The BCLK Frequency to DRAM Frequency ratio will be set to 100:133.
DRAM Frequency [Auto]
Allows you to set the memory operating frequency. The configuration options vary with the
BCLK/CPU Strap Frequency item settings.
Xtreme Tweaking [Disabled]
Allows you to enable or disable Xtreme Tweaking.
Configuration options: [Enabled] [Disabled]
CPU Level Up [Auto]
This item allows you to select the CPU Level depending on the CPU frequency.
EPU Power Saving Mode [Disabled]
Allows you to enable or disable the EPU power saving function.
Configuration options: [Disabled] [Enabled]
DRAM Timing Control
The subitems 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 the <Enter> key.
Memory Presets
This item allows you to select and load a memory preset or timing profile from a predefined
list. The configurations of the memory presets are provided by the ROG OC expert team.
Users can load the profiles before performing overclocking or DRAM tweaking.
Maximus Tweak [Auto]
This item allows you to choose the mode that is supported by Maximus Tweak when you
want to fine tune the DRAM of the system. Mode 1 helps you with the DRAM performance
Mode 2 helps you in overclocking and system performance.
[Auto] Automatically selects the mode.
[Mode 1] Memory compatibility.
[Mode 2] Overclocking and performance.
Changing the values in this menu may cause the system to become unstable! If this
happens, revert to the default settings.