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X8DAL-3/X8DAL-i User's Manual
SR-IOV Support
Single Root I/O Virtualization is an industry-standard mechanism that allow devices
to advertise their capability to be simultaneously shared among several virtual
machines. SR-IOV is capable of partitioning a PCI function into several virtual
interfaces for sharing the resources of a PCI Express device under a virtual envi-
ronment. The options are Disabled and Enabled.
NUMA Support
Select Enabled to enable Non-Uniform Memory Access support to enhance soft-
ware execution performance for NUMA-aware operating systems. Select Disabled
for better memory accessibility for non-NUMA operating systems. The options are
Enabled and Disabled.
Intel I/OAT
The Intel I/OAT (I/O Acceleration Technology) signifi cantly reduces CPU overhead
by leveraging CPU architectural improvements, freeing resources for more other
tasks. The options are Enabled and Disabled.
Active State Power Management
Select Enabled to start Active-State Power Management for signal transactions
between L0 and L1 Links on the PCI Express Bus. This maximizes power-saving
and transaction speed. The options are Enabled and Disabled.
Route Port 80h Cycle to
Use this item to decide where to route Port 80h Cycle to. The Options are LPC
and PCI.
USB Functions
This feature allows the user to decide the number of onboard USB ports to be en-
abled. The Options are: Disabled, 2 USB ports, 4 USB ports, 6 USB ports, 8 USB
ports, 10 USB ports and 12 USB ports.
USB 2.0 Controller
Select Enabled to activate the onboard USB2.0 controller. The options are En-
abled and Disabled.
Legacy USB Support
Select Enabled to use Legacy USB devices. If this item is set to Auto, Legacy USB
support will be automatically enabled if a legacy USB device is installed on the
motherboard, and vise versa. The settings are Disabled, Enabled and Auto.
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