User`s manual

Chapter 7: BIOS

7-11

NUMA Support

Select Enabled to efﬁ ciently execute applications under Non-Uniform Memory Ar-

chitecture (NUMA)-aware Operating Systems. Select Disabled for better memory

access under non-NUMA aware Operating Systems. 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, thus freeing resources for other

tasks. The options are Disabled and Enabled.

Active State Power Management

Select Enabled to enable Active-State Power Management support for signal trans-

actions between L0 and L1 Links on the PCI Express Bus. This maximizes power-

saving and transaction speed. The options are Enabled and Disabled.

Route Port 80h Cycles to

This feature allows the user to decide which bus to send debug information to. The

options are PCI and LPC.

USB Functions

This feature allows the user to enable onboard USB support. 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

Select Enabled to activate the onboard USB 2.0 controller. The options are Enabled

and Disabled. (The manufacturer's default setting is Enabled. This setting cannot

be changed by the user.)

Legacy USB Support

Select Enabled to use Legacy USB devices. Select Auto to automatically enable

Legacy USB support if a legacy USB device is installed, and vise versa. Select

Disabled to disable Legacy USB support. The options are Disabled, Auto, and

Enabled.