46 Using the System Setup Program and UEFIBoot Manager
PCI IRQ Assignments Screen
Internal USB Port 1
(On default)
Enables or disables the internal USB port.
Internal USB Port 2
(On default)
Enables or disables the internal USB port.
Embedded NIC1 and
NIC2
(Enabled default)
Enables or disables the OS interface of the two embedded
NICs. (The NICs may also be accessed through the
system’s management controller.)
Embedded Gb NICx
(NIC1 default: Enabled
with PXE;
Other NICs: Enabled)
Enables or disables the embedded NICs. Options are
Enabled, Enabled with PXE, and Enabled with iSCSI
Boot. PXE support allows the system to boot from the
network.
MAC Address Displays the MAC address for the NIC.
OS Watchdog Timer
(Disabled default)
Sets a timer to monitor the operating system for activity,
and aids in recovery if the system stops responding.
WhenEnabled, the operating system is allowed
toinitialize the timer. When Disabled, the timer is
notinitialized.
NOTE: This feature is usable only with operating systems
that support WDAT implementations of the Advanced
Configuration and Power Interface (ACPI) 3.0b specification.
I/OAT DMA Engine
(Disabled default)
Enables or disables the I/O acceleration technology
(I/OAT). This feature should only be enabled if the
hardware and software support I/OAT.
Embedded Video
Controller
(Enabled default)
Displays the total amount of video memory available in
the embedded video controller.
Option Description
Embedded X-treme PCI
Adapter
Use the <+> and <-> keys to manually select an IRQ
for a given device, or select Default to allow the BIOS to
select an IRQ value at system startup.
Option Description
book.book Page 46 Wednesday, May 12, 2010 9:26 PM