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Chapter 4: AMI BIOS
IIO1 Configuration
IOU2 (II01 PCIE Port 1)
Use this item to configure the PCI-E port Bifuraction setting for a PCI-E port
specified by the user. The options are x4x4, x8, and Auto.
IOU0 (II01 PCIe Port 2)
Use this feature to set the PCI-Exp bus speed for the slot specified above. The
options are x4x4x4x4, x4x4x8, x8x4x4, x8x8, x16, and Auto.
IOU1 (II01 PCIe Port 3)
Use this feature to set the PCI-Exp bus speed for the slot specified above. The
options are x4x4x4x4, x4x4x8, x8x4x4, x8x8, x16, and Auto.
IOU1 IOU0 Non-Posted Prefetch/IOU1 IOU1 Non-Posted Prefetch/IOU1
IOU2 Non-Posted Prefetch
Select Enable to use the function of Non-Posted Prefetch on the slot specified
by the user. The options are Enable and Disable.
IIO2 Configuration
IOU2 (II02 PCIE Port 1)
Use this item to configure the PCI-E port Bifuraction setting for a PCI-E port
specified by the user. The options are 4x4, x8, and Auto.
IOU0 (II02 PCIE Port 2)
Use this feature to set the PCI-Exp bus speed for the slot specified above. The
options are x4x4x4x4, x4x4x8, x8x4x4, x8x8, x16, and Auto.
IOU1 (II02 PCIe Port 3)
Use this feature to set the PCI-Exp bus speed for the slot specified above. The
options are x4x4x4x4, x4x4x8, x8x4x4, x8x8, x16, and Auto.
IOU2 IOU0 Non-Posted Prefetch/IOU2 IOU1 Non-Posted Prefetch/IOU2
IOU2 Non-Posted Prefetch
Select Enable to use the function of Non-Posted Prefetch on the slot specified
by the user. The options are Enable and Disable.
IOAT Configuration
Enable IOAT (I/O Acceleration Technology)
Select Enable to enable Intel I/OAT (I/O Acceleration Technology), which signifi-
cantly reduces CPU overhead by leveraging CPU architectural improvements
4-11
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