MSI VR321 User Manual - Page 74

PCI Latency Timer, 64, 96, 128, 160, 192, 224, Legacy USB Support, Enabled, Disabled

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BIOS Setup 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. For better PCI performance, you should set the item to higher values. Setting options: 32, 64, 96, 128, 160, 192, 224, and 248. w Legacy USB Support Selecting Enabled allows you to use USB devices, such as mouse, keyboard, or portable disk, in DOS system; or allows you to boot your system by USB device. Setting options: Enabled, and Disabled. 4-9

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4-9
BIOS Setup
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. For better PCI performance, you should set the item to higher
values. Setting options:
32, 64, 96, 128, 160, 192, 224,
and
248.
w
Legacy USB Support
Selecting
Enabled
allows you to use USB devices, such as mouse,
keyboard, or portable disk, in DOS system; or allows you to boot your
system by USB device. Setting options:
Enabled
, and
Disabled
.