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36 Using the System Setup Program
Enabling PowerNow!™ Technology
PowerNow! technology controls your system’s processor performance automatically, dynamically
adjusting the operating frequency and voltage according to the task at hand. When an application does
not require full performance, significant amounts of power can be saved. Performance is designed to still
be responsive, with maximum processor performance being delivered when required, and automatic
power savings when possible.
NOTE: PowerNow! support is dependent on the operating system and version used on your system.
To enable the PowerNow! feature, run the System Setup Program and enable the Demand-Based Power
Management option on the CPU Information screen.
Additionally, for
Microsoft
®
Windows
®
operating systems, you will need to install the PowerNow! driver
to enable this feature. The driver is available on the Dell OpenManage Service and Diagnostic CD
provided with your system, and at support.dell.com.
Integrated Devices Screen
Table 2-5 lists the options and descriptions for the information fields that appear on the Integrated
Devices screen.
Table 2-5. Integrated Devices Screen Options
Option Description
IDE CD-ROM Controller
(Auto default)
Enables the integrated IDE controller. When set to
Auto
, each channel of the
integrated IDE controller is enabled if IDE devices are attached to the channel and
an external IDE controller is not detected.
NOTE: This CD-ROM option will not appear on this menu screen if your system does
not include this optional device.
User-Accessible USB Ports
(All Ports On default)
Enables or disables the system's user-accessible ports. Options are All Ports On,
Only Back Ports On, or All Ports Off. Disabling the USB ports makes system
resources available for other devices.
Embedded Gb NIC1
(Enabled with PXE
default)
Enables or disables the system's integrated NIC1. Options are Enabled without
PXE, Enabled with PXE, and Disabled. PXE support allows the system to boot
from the network. Changes take effect after the system reboots.
MAC Address Displays the MAC address for NIC1. This field does not have user-selectable
settings.
Embedded Gb NIC2
(Enabled without PXE
default)
Enables or disables the system's integrated NIC2. Options are Enabled without
PXE, Enabled with PXE, and Disabled. PXE support allows the system to boot
from the network. Changes take effect after the system reboots.
MAC Address Displays the MAC address for NIC2. This field does not have user-selectable
settings.
TOE Capability Displays the TCP-IP Offload Engine (TOE) feature status of the NIC.