BIOS Setup 
Advanced Menu (Translation) 
w  Intel(R) SpeedStep(tm) tech. (Translation) 
This item allows you to enable or disable Intel SpeedStep technology.  
When set to  Disabled, the system always operates in a conserve power 
mode (the processor works at FSB400-600MHz or FSB533-800MHz).  If 
you want optimize the processor, set this item to  Enabled, so that the 
processor’s speed will be controlled by the use of your operating system 
and applications.   Setting options: Enabled, and Disabled. 
 
w  AHCI Mode (Advanced Host Controller Interface) 
Use this item to  enable or disable the AHCI Mode.  Setting options: 
Disabled and Enabled.  The default setting is Disabled. 
 
w  Legacy USB Support (Translation) 
Selecting  Enabled allows  users to use USB devices, such as mouse, 
keyboard, or portable disk, in DOS system; or allows users to boot the 
system by USB device.  Setting options: Enabled, Disabled and Auto.   
 
w  PCI Latency Timer 
This item controls how long each PCI device can hold the bus before 
another takes over. When set to higher values, every PCI device can 
conduct transactions for a longer time and thus improve the effective PCI 
bandwidth. 
Intel  (R) Speedstep (tm)
AHCI Mode
Legacy USB Support
PCI Legacy Timer
[Enabled]
[Disable]
[]Enabled
[32 PCI Bus Clocks]
Enter: 
+/-: 
F1: 
F2: 
F9: 
F4: 
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Previous Values
Optimized Default
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Atpio Setup Utility - Copyright (C) 2007 American Megatrends, Inc.
Main Advanced
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Version 1.23.1109. Copyright (C) 2007 American Megatrends, Inc.