MSI EX625 User Manual - Page 81

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BIOS Setup 4-7 Advanced Menu Š 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. Š 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. For better PCI performance, you should set the item to higher values. Setting options: 32, 64, 96, 128, 160, 192, 224, and 248. Š Legacy USB Support 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: Auto, Enabled and Disabled. Š AHCI Mode Use this item to enable or disable the AHCI Mode. Setting options: Disabled and Enabled. The default setting is Disabled.

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4-7
BIOS Setup
Advanced Menu
±
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
.
±
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. For better PCI performance, you should set the item to higher
values.
Setting options:
32, 64, 96, 128, 160, 192, 224,
and
248.
±
Legacy USB Support
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:
Auto,
Enabled
and
Disabled
.
±
AHCI Mode
Use this item to enable or disable the AHCI Mode.
Setting options:
Disabled and Enabled.
The default setting is
Disabled
.