2 south bridge configuration, Bios menu 18: south bridge chipset configuration – IEI Integration AVL-3000 User Manual
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AVL-3000 Advanced Auto Data Server
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4.4.2 South Bridge Configuration
Use the South Bridge Configuration menu (BIOS Menu 18) to configure the
Southbridge chipset.
Aptio Setup Utility – Copyright (C) 2011 American Megatrends, Inc.
Chipset
Set Spread Spectrum function
[Disabled]
 
Set Spread Spectrum 
Disable/Enable. 
 
--------------------- 
 
: Select Screen
↑ ↓: Select Item 
Enter: Select 
+/-: Change Opt. 
F1: General 
Help
F2: Previous
Values
F3: Optimized
Defaults
F4: Save & Exit 
ESC: Exit 
Version 2.14.1219. Copyright (C) 2011 American Megatrends, Inc.
BIOS Menu 18: South Bridge Chipset Configuration
Set Spread Spectrum function [Disabled]
Use the Set Spread Spectrum function option to enable or disable the spread spectrum
function.
Disabled D
EFAULT
Disables the spread spectrum function.
Enabled
Enables the spread spectrum function.