Dell OptiPlex E1 - Manual (Page 6)

4 Dell OptiPlex E1 Managed PC Systems Documentation Update
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Selecting IDE CD-ROM Reader causes the system to try booting from the
CD-ROM drive first. If the system finds a CD that is not bootable in the drive or
finds a problem with the drive itself, it displays an error message. If it does not
find a CD in the drive, the system tries to boot from the next device in the boot
sequence list.
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Selecting PXE (Preboot eXecution Environment) causes the system to boot from
the integrated network interface controller (NIC) first. If a boot routine is not
available from the network server, the system tries to boot from the next device
in the boot sequence list.
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Integrated Devices configures the devices integrated with the system board.
Press to configure these options.
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Network Interface Controller determines whether the integrated NIC is On, Off, or
On w/ PXE. The default is On w/ PXE, which means that the NIC is enabled and set
to boot the system remotely from a network server.
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ACPI controls the operation of the system’s Advanced Configuration and Power
Interface (ACPI) feature. The default is Off.
When ACPI is set to On, momentarily pressing the power button places the system in
a power-saving mode. To turn the system off completely, press the power button for
more than 4 seconds. When ACPI is set to On, interrupt request (IRQ) line 9 is not
available for use by an expansion card.
When ACPI is set to Off, momentarily pressing the power button turns off the system
completely. With this setting, IRQ9 is available for use by an expansion card.
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System Security configures the password and chassis intrusion categories. Press
to configure these categories.
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Chassis Intrusion displays the status of the system chassis intrusion monitor and can
be set to Enabled, Enabled-Silent, or Disabled. The default is Enabled.