Physical security, Chassis intrusion detection, Option settings – Dell OptiPlex 755 User Manual
Page 5: Padlock ring and security cable slot
l
Monitor the status of your computer, such as listening for thermal alerts from temperature probes or hard drive failure alerts from storage devices.
l
Change the state of your computer by updating its BIOS, configuring BIOS settings, or shutting it down remotely.
With Dell Client Manager installed on a console and its client software installed on client computers, you have a managed computer. For information about
DCM, see the Dell Support website at support.dell.com.
Physical Security
Chassis Intrusion Detection
This (optional on some computers) feature, if installed and enabled, detects that the chassis was opened and alerts the user. To change the Chassis
Intrusion setting:
1.
2.
Press the down-arrow keys to move to the System Security option.
3.
Press <Enter> to access the System Security option's pop-up menu.
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
). 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 top of the computer.
NOTE:
When the administrator password is enabled, you must know the administrator password before you can reset the Chassis Intrusion setting.