5 advanced menu, Advanced menu -26, Chapter 3 – Asus P9X79 PRO User Manual
Page 98: Dram read ref voltage on chd [auto, Cpu spread spectrum [auto, Pcie spread spectrum [auto
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Chapter 3: BIOS setup
Chapter 3
Be cautious when changing the settings of the Advanced menu items. Incorrect field values
can cause the system to malfunction.
3.5
Advanced menu
The Advanced menu items allow you to change the settings for the CPU and other system
devices.
Main
Ai Tweaker
Advanced
Monitor
Boot
Tool
Exit
CPU Configuration Parameters
UEFI BIOS Utility - Advanced Mode
Version 2.10.1208. Copyright (C) 2011 American Megatrends, Inc.
→←
: Select Screen
↑↓
: Select Item
Enter: Select
+/-: Change Opt.
F1: General Help
F2: Previous Values
F5: Optimized Defaults
F10: Save ESC: Exit
> CPU Configuration
> PCH Configuration
> SATA Configuration
> SAS Configuration
> USB Configuration
> Onboard Devices
> APM
DRAM Read REF Voltage on CHD [Auto]
Allows you to set the DRAM Control Reference Voltage on Channel C/D. The values
range from 0.3950x to 0.6300x with a 0.005x interval. Different ratio might enhance DRAM
overclocking ability.
CPU Spread Spectrum [Auto]
[Disabled]
Enhances the BCLK overclocking ability.
[Enabled]
Sets to [Enabled] for EMI control.
PCIE Spread Spectrum [Auto]
[Disabled]
Enhances the PCIE overclocking ability.
[Enabled]
Sets to [Enabled] for EMI control.