2-8 Dell OptiPlex GX1 and GX1p Mini Tower Managed PC Systems Reference and Installation Guide
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DAC Snoop 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 problems
such as incorrect colors or blank windows occur, set DAC Snoop to On.
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This option controls the operation of the system’s Advanced Configuration and Power
Interface (ACPI) feature.
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 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 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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Keyboard Errors enables or disables reporting of keyboard errors during the POST,
which is a series of tests that the system performs on the hardware each time you
turn on the system or press the reset button.
This option is useful when applied to self-starting servers or host systems that have no
permanently attached keyboard. In these situations, selecting Do Not Report sup-
presses all error messag es relating to the keyboard o r to the keyboa rd controller
during POST. This option does no t affect the operation of th e keyb oa rd itse lf if a
keyboard is attached t o th e com pu te r.
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System Password displays the current status of your system’s password security fea-
ture and allows you to assign and verify a new password. No one can assign a new
password unless the current status is Not Enabled, which is displayed in bright
characters.
The settings for the System Password option are:
Not Enabled (the default option)
Enabled
Disabled by Jumper

NOTE: Read “Using the System Password Feature” found later in this chapter for

instructions on assigning a system password and using or changing an existing

system password. See “Disabling a Forgotten Password” found later in this chapter

for instructions on disabling a forgotten system password.