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Chapter 4: AMI BIOS
IIO2 Configuration
IIO 2 IOU1 - PCIe Port
This item configures the PCI-E port Bifuraction setting for a PCI-E port specified
by the user. The options are x4x4, x8, and Auto.
Port 1A Link Speed
Use this item to configure the link speed of a PCI-E device installed on the PCI-E
slot specified by the user. The options are Gen1, Gen2, and Gen3.
IIO 2 IOU2 - PCIe Port
This item configures the PCI-E port Bifuraction setting for a PCI-E port specified
by the user. The options are x4x4x4x4, x4x4x8, x8x4x4, x8x8, x16, and Auto.
Port 2A Link Speed
Use this item to configure the link speed of a PCI-E device installed on the PCI-E
slot specified by the user. The options are Gen1, Gen2, and Gen3.
IIO 2 IOU3 - PCIe Port
This item configures the PCI-E port Bifuraction setting for a PCI-E port specified
by the user. The options are x4x4x4x4, x4x4x8, x8x4x4, x8x8, x16, and Auto.
Port 3A Link Speed
Use this item to configure the link speed of a PCI-E device installed on the PCI-E
slot specified by the user. The options are Gen1, Gen2, and Gen3.
IOAT (Intel® IO Acceleration) Configuration
Enable IOAT
Select Enable to enable Intel I/OAT (I/O Acceleration Technology) support,
which will significantly reduce CPU overhead by leveraging CPU architectural
improvements and freeing the system resource for other tasks. The options are
Enable and Disable.
Early Snoop
Select Enable to support Early-snoop mode for each CB device. The options
are Disable and Enable.
Relaxed Ordering
Select Enable to enable Relaxed Ordering support which will allow certain
transactions to violate the strict-ordering rules of PCI bus for a transaction to be
completed prior to other transactions that have already been enqueued earlier.
The options are Disable and Enable.
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