Dell OptiPlex NX1 - Manual (Page 164)

A-4 Dell OptiPlex GX1/GX1p Managed PC and OptiPlex NX1 Net PC Systems Service Manual
Chassis Intrusion Enables or disables the chassis intrusion fea-
ture. If computer cover is removed when the
option is set to Enabled, the setting changes
to Detected. (An alert message is also dis-
played during the boot sequence at system
start-up.) To clear this field and allow future
intrusions to be detected, enter the System
Setup program during the system’s POST and
press any key. This action changes the setting
from Detected to Enabled. The option can
also be set to Disabled to turn off the chassis
intrustion feature, or Enabled-Silent, to pre-
vent the alert message from being displayed
at system start-up.
DAC Snoop When enabled, this option lets you correct
video problems that may occur when certain
video add-in cards are used. The default is Off.
If you are using a video add-in card and prob-
lems such as incorrect colors or blank win-
dows occur, set DAC Snoop to On.
ACPI This option controls the operation of the sys-
tem’s Advanced Configuration and Power
Interface (ACPI) feature.
When ACPI is set to On, momentarily press-
ing the power button places the system in a
power-saving mode. To turn the system off
completely, press the power button for more
than four 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 press-
ing the power button turns off the system
completely. With this setting, IRQ9 is available
for use by an expansion card.
Keyboard Errors Enables or disables reporting of keyboard
errors during POST.
System Password Displays current status of system’s password
security feature. Also used to assign and verify
a new password.
Password Status Provides an extra measure of system security
by letting you set the system password to
Locked
or Unlocked.
Boot Sequence Boot Sequence can be set to Diskette First
(the default option), Hard Disk Only, CD-ROM
First, or Device List.
Setup Password Restricts access to System Setup program.
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