Supermicro X10DRS-2U - Page 78

Chapter 4: AMI BIOS
4-11
IIO1 Conguration
IOU2 (IIO1 PCIe Port 1)
This item congures the PCI-E port Bifuraction setting for a PCI-E port specied
by the user. The options are x4x4, x8, and Auto.
IOU0 (IIO1 PCIe Port 2)
This item congures the PCI-E port Bifuraction setting for a PCI-E port specied
by the user. The options are x4x4x4x4, x4x4x8, x8x4x4, x8x8, x16, and Auto.
IOU1 (IIO1 PCIe Port 3)
This item congures the PCI-E port Bifuraction setting for a PCI-E port specied
by the user. The options are x4x4x4x4, x4x4x8, x8x4x4, x8x8, x16, and Auto.
IIO2 Conguration
IOU2 (IIO2 PCIe Port 1)
This item congures the PCI-E port Bifuraction setting for a PCI-E port specied
by the user. The options are x4x4, x8, and Auto.
IOU0 (IIO2 PCIe Port 2)
This item congures the PCI-E port Bifuraction setting for a PCI-E port specied
by the user. The options are x4x4x4x4, x4x4x8, x8x4x4, x8x8, x16, and Auto.
IOU1 (IIO2 PCIe Port 3)
This item congures the PCI-E port Bifuraction setting for a PCI-E port specied
by the user. The options are x4x4x4x4, x4x4x8, x8x4x4, x8x8, x16, and Auto.
IOAT (Intel® IO Acceleration) Conguration
Enable IOAT
Select Enable to enable Intel I/OAT (I/O Acceleration Technology) support, which
signicantly reduces CPU overhead by leveraging CPU architectural improve-
ments and freeing the system resource for other tasks. The options are Enable
and Disable.
No Snoop
Select Enable to support no-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