Dell OptiPlex 745c (Early 2007) - Manual (Page 5)

4. Press the down-arrow key to move to the Chassis Intrusion setting.
5. Press <Enter> to select an option setting.
6. Press <Enter> again after you update the option setting.
7. Exit and save system setup.
Option Settings
l On — If the computer cover is opened, the setting changes to Detected, and the following alert message displays during the boot routine at the next
computer start-up:
Alert! Cover was previously removed.
To reset the Detected setting, enter system setup (see Entering System Setup ). In the Chassis Intrusion option, press the left- or right-arrow key to
select Reset, and then choose On, On-Silent, or Off.
l On-Silent (default setting) — If the computer cover is opened, the setting changes to Detected. No alert message appears during the boot sequence
at the next computer start-up.
l Off — No intrusion monitoring occurs and no messages appear.
Padlock Ring and Security Cable Slot
Use one of the following methods to secure your computer:
l Use a padlock alone or a padlock and looped security cable with the padlock ring.
A padlock alone prevents the computer from being opened.
A security cable looped around a stationary object is used in conjunction with a padlock to prevent unauthorized movement of the computer.
l Attach a commercially available antitheft device to the security cable slot on the back of the computer.
Antitheft devices usually include a segment of metal-stranded cable with an attached locking device and key. The documentation that comes with the
device contains instructions for installing it.
Trusted Platform Module (TPM)
TPM is a hardware-based security feature that can be used to create and manage computer-generated encryption keys. When combined with security
software, the TPM enhances existing network and computer security by enabling features such as file protection capabilities and protected e-mail. The TPM
feature is enabled through a system setup option.
Enabling the TPM Feature
1. Enable the TPM software:
a. Restart the computer and press <F2> during the Power On Self Test to enter the system setup program.
b. Select Security® TPM Security and press <Enter>.
c. Under TPM Security, select On.
d. Press <Esc> to exit the setup program.
e. If prompted, click Save/Exit.
2. Activate the TPM setup program:
a. Restart the computer and press <F2> during the Power On Self Test to enter the system setup program.
b. Select Security® TPM Activation and press <Enter>.
c. Under TPM Activation, select Activate and press <Enter>.
NOTE: Before you purchase an antitheft device, make sure that it works with the security cable slot on your computer.
NOTE: The TPM feature supports encryption only if the operating system supports TPM. For more information, see the TPM software documentation and
the help files that came with the software.
NOTICE: To secure your TPM data and encryption keys, follow the backup procedures documented in the Archive and Restore section of the EMBASSY
Security Center help file. In the event of these backups being incomplete, lost, or damaged, Dell will be unable to assist in the recovery of encrypted
data.