MSI X370 User Manual - Page 86

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BIOS Setup 4-7 Advanced Menu Š PowerNow This item allows you to enable or disable PowerNow function. When set to Enabled, the system always operates in a conserve power mode. If you want to optimize the processor, set this item to Disabled, so that the processor's speed will vary depending on the use of your operating system and applications. Default setting is set to Enabled. 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: Enabled, Disabled and Auto.

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4-7
BIOS Setup
Advanced Menu
PowerNow
This item allows you to enable or disable
PowerNow
function.
When set
to
Enabled
, the system always operates in a conserve power mode.
If
you want to optimize the processor, set this item to
Disabled
, so that the
processor’s speed will vary depending on the use of your operating system
and applications.
Default setting is set to
Enabled
.
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:
Enabled
,
Disabled
and
Auto
.