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52 Using the System Setup Program
Serial Communication Screen
Table 2-7 lists the options and descriptions for the information fields that
appear on the Serial Communication screen.
MAC Address Displays the MAC address for the integrated 10/100/1000
NIC. This field does not have user-selectable settings.
OS Watchdog Timer
(Disabled default)
NOTE: This feature is usable only with operating systems
that support WDAT implementations of the Advanced
Configuration and Power Interface (ACPI) 3.0b
specification.
Sets a timer that monitors the operating system for
activity and aids in recovery if the system stops
responding. When this field is set to Enabled, the
operating system is allowed to initialize the timer. When
set to Disabled, the timer is not initialized.
I/OAT DMA Engine
(Disabled default)
Enables the I/O Acceleration Technology (I/OAT) option.
This feature should be enabled only if the hardware and
software support I/OAT. The I/OAT Data Memory
Transfer (DMA) Engine transfers data between memory
modules, allowing data to bypass the CPU. I/OAT will be
supported on the NICs.
System Interrupt
Assignment (Standard)
Controls the interrupt assignment of PCI devices in the
system. When set to distributed, the interrupt routing
will be swizzled to minimize IRQ sharing.
Table 2-7. Serial Communication Screen Options
Option Description
Serial Communication
(On without Console
Redirection default)
Options are On without Console Redirection, On with
Console Redirection via COM1, On with Console
Redirection via COM2, and Off.
External Serial Connector
(COM1 default)
Specifies whether COM1, COM2, or Remote Access
Device has access to the external serial connector for
serial communications.
Table 2-6. Integrated Devices Screen Options (continued)
Option Description