Chapter 4: AMI BIOS
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interfaces for sharing the resources of a PCI Express (PCIe) device under a virtual
environment. The options are Disabled and Enabled.
NUMA Support
Select Enabled to use the feature of Non-Uniform Memory Access to improve CPU
performance. 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 Disabled and Enabled.
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.
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
This feature displays the current USB controller used in the motherboard.
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.
IDE/SATA Confi guration
When this submenu is selected, the AMI BIOS automatically detects the presence
of the IDE devices and displays the following items:
SATA#1 Confi guration
If Compatible is selected, it sets SATA#1 to legacy compatibility mode, while se-
lecting Enhanced sets SATA#1 to native SATA mode. The options are Disabled,
Compatible and Enhanced.
Confi gure SATA#1 as
This feature allows the user to select the drive type for SATA#1. The options are
IDE, RAID and AHCI. (When the option-RAID is selected, the item-ICH RAID
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