Dell Precision 420 - Manual (Page 121)

System Security configures the following password and chassis intrusion options:
l System Password
l Password Status
l Setup Password
l Chassis Intrusion
l CPU Serial Number
Press <Enter> to configure these options as explained in the following subsections.
System Password
System Password displays the current status of your system's password security feature 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 System Password option has the following settings:
l
Not Enabled (the default)
l
Enabled
l
Disabled by Jumper
Password Status
When Setup Password is set to Enabled, Password Status allows you to prevent the system password from being changed or disabled at
system start-up.
To lock the system password, you must first assign a setup password in Setup Password and then change the Password Status option to
Locked. When Setup Password has a password assigned and Password Status is set to Locked, the system password cannot be changed
through the System Password option and cannot be disabled at system start-up by pressing <Ctrl><Enter>.
To unlock the system password, you must enter the setup password in Setup Password and then change the Password Status option to
Unlocked. When the option is set to Unlocked, you can disable the system password at system start-up by pressing <Ctrl><Enter>. Then change
the password through the System Password option.
Setup Password
Setup Password lets you restrict access to System Setup in the same way that you restrict access to your system with the system password
feature. The settings are:
l Not Enabled (the default)
l Enabled
l Disabled by Jumper
Chassis Intrusion
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.
If the computer cover is removed while the intrusion monitor is set to Enabled, a Desktop Management Interface (DMI) event is generated, the
setting changes to Detected, and the following message appears during the boot routine at the next system start-up:
Alert! Cover was previously removed.
If the computer cover is removed while the intrusion monitor is set to Enabled-Silent, a DMI event is generated and the setting changes to
Detected, but the alert message does not appear during the boot sequence at the next system start-up.
If the intrusion monitor is set to Disabled, no intrusion monitoring occurs and no messages appear.
To reset the Detected setting, enter System Setup during the system's POST. In the Chassis Intrusion option, press the left- or right-arrow key to
NOTE: See " Using the System Password Feature " for instructions on assigning a system password and using or changing an existing
system password. See " Disabling a Forgotten Password " for instructions on disabling a forgotten system password.
NOTE: See " Using the Setup Password Feature " for instructions on assigning a setup password and using or changing an existing
setup password. See " Disabling a Forgotten Password " for instructions on disabling a forgotten setup password.