Iio Configuration - Supermicro X10SDD-F User Manual

Chapter 4: BIOS
IIO Configuration
EV DFX (Device Function On-Hide) Features
When this feature is set to Enable, the EV_DFX Lock Bits that are located on a processor
will always remain clear during electric tuning. The options are Disable and Enable.
IIO1 Configuration
CPU1 MICRO-LP PCI-E 3.0 X8
This feature allows the user to select PCI-E support for the device installed on the Micro
LP slot. The options are Auto, Gen 1 (2.5 GT/s), Gen 2 (5 GT/s), and Gen 3 (8 GT/s).
CPU1 SLOT1 PCI-E 3.0 X8
This feature allows the user to select PCI-E support for the device installed on SLOT1. The
options are Auto, Gen 1 (2.5 GT/s), Gen 2 (5 GT/s), and Gen 3 (8 GT/s).
IOAT (Intel IO Acceleration) Configuration
®
Enable IOAT
Select Enable to enable Intel I/OAT (I/O Acceleration Technology) support, which significantly
reduces CPU overhead by leveraging CPU architectural improvements and freeing the
system resource for other tasks. The options are Disable and Enable.
No Snoop
Select Enable to support no-snoop mode for each CB device. The options are Disable
and Enable.
VT for Directed I/O (VT-d)
Intel
®
Intel ® VT for Directed I/O (VT-d)
Select Enable to use Intel ® Virtualization Technology support for Direct I/O VT-d support
by reporting the I/O device assignments to the VMM (Virtual Machine Monitor) through the
DMAR ACPI Tables. This feature offers fully-protected I/O resource sharing across Intel
platforms, providing greater reliability, security and availability in networking and data-
sharing. The options are Enable and Disable.
ACS Control
Use this feature to program Access Control Services (ACS) to the PCI-E Root Port Bridges.
The options are Enable and Disable.
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