Dell OptiPlex GX110 - Manual (Page 114)

Chassis Intrusion
An integrated chassis intrusion alarm displays the status of the system chassis intrusion monitor. If the chassis has been opened, the setting
changes to Detected and the following message appears during the boot sequence at system start-up:
Alert! Cover was previously removed.
Use System Setup to reset the alarm so that future intrusions are detected.
Security Cable Slot and Padlock Ring
On the back of the computer are a security cable slot and padlock ring (see Figure 5 , Figure 6 , Figure 7 , or Figure 8 in "Inside Your Computer") for
attaching commercially available antitheft devices. Security cables for personal computers usually include a segment of galvanized cable with an
attached locking device and key. To prevent unauthorized removal of your computer, loop the cable around an immovable object, insert the locking
device into the security cable slot on the back of your computer, and lock the device with the key provided. Complete instructions for installing this
kind of antitheft device are usually included with the device.
Using the System Password Feature
NOTICE: The password features provide a basic level of security for the data on your system. However, they are not foolproof. If
your data requires more security, it is your responsibility to obtain and use additional forms of protection, such as data encryption
programs.
Your Dell system is shipped to you without the system password feature enabled. If system security is a concern, operate your system only with
system password protection.
You can assign a system password, as described in " Assigning a System Password ," whenever you use System Setup . After a system password
is assigned, only those who know the password have full use of the system.
When System Password is set to Enabled, the computer system prompts you for the system password just after the system boots. See " Using
Your System Password to Secure Your System " for more information.
To change an existing system password, you must know the password (see " Deleting or Changing an Existing System Password "). If you assign
and later forget a system password, you must remove the computer cover to change a jumper setting that disables the system password feature
(see "
Disabling a Forgotten Password "). Note that you erase the setup password at the same time.
NOTICE: If you leave your system running and unattended without having a system password assigned, or if you leave your
computer unlocked so that someone can disable the password by changing a jumper setting, anyone can access the data stored on
your hard-disk drive.
Assigning a System Password
Before you can assign a system password, you must enter System Setup and check the System Password option.
When a system password is assigned, the setting shown in System Password is Enabled. When the system password feature is disabled by a
jumper setting on the system board, the setting shown is Disabled. You cannot change or enter a new system password if either of these options
is displayed.
When no system password is assigned and the password jumper on the system board is in the enabled position (its default setting), the option
shown for the System Password option is Not Enabled. Only when System Password is set to Not Enabled can you assign a system
password, using the following procedure:
1. Verify that Password Status is set to Unlocked.
For instructions on changing the setting for Password Status, see " Password Status ."
2. Highlight System Password, and then press the left- or right-arrow key.
The option heading changes to Enter Password, followed by an empty 32-character field in square brackets.
3. Type your new system password.
You can use up to 32 characters in your password.
NOTES: Antitheft devices are of differing designs. Before purchasing such a device, make sure it works with the cable slot on your
computer.
The small-form-factor chassis has a padlock ring that slides in and out of the back cover. To use the ring, pull it into the extended
position.