Using the System Setup Program and UEFI Boot Manager 49
PCI IRQ Assignments Screen
Serial Communication Screen
OS Watchdog Timer
(Disabled default)
Sets a timer to monitor the operating system for activity, 
and aids in recovery if the system stops responding. 
When Enabled, the operating system is allowed 
to initialize the timer. When Disabled, the timer is 
not initialized.
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
Serial Communication
(On without Console 
Redirection default)
Selects whether the serial communication devices 
(Serial Device 1 and Serial Device 2) are enabled in 
BIOS. BIOS console redirection can also be enabled and 
the port address used can be specified.
Options are On without Console Redirection, On with 
Console Redirection via COM1, On with Console 
Redirection via COM2, and Off. 
Option Description
book.book  Page 49  Wednesday, March 3, 2010  10:37 AM