MSI 163C - Manual (Page 76)

4-11
BIOS Setup
Advanced Settings
w Intel(R) SpeedStep(tm) tech.
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 PCI Latency Timer
Value in units of PCI clocks for PCI device latency timer register.
w Legacy USB Support
Select Enabled to enable the legacy support for USB devices. Setting
options: Enabled, and Disabled.
w Chipset Configuration
This item allows you to enable automatically or disable HD audio Azalia
device.
w AHCI Mode
This item allows you to enable/disable AHCI mode.