Dell Precision 420 - Manual (Page 101)

chassis) for attaching commercially available theft-deterrent 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 the computer, loop the cable around an immovable
object, ensure the padlock ring is in its closed position, insert the locking device into the security cable slot on the back of the computer, and lock
the device with the key provided. Complete instructions for installing this kind of theft-deterrent device are usually included with the device.
The padlock ring allows you to secure the computer cover to the chassis to prevent unauthorized access to the inside of the computer. To use the
padlock ring, slide the padlock ring to its closed position, insert a commercially available padlock through the ring, and then lock the padlock.
Figure 3. Desktop Chassis Security Cable Slot and Padlock Ring
Figure 4. Mini Tower Chassis Security Cable Slot and Padlock Ring
Getting Help
If at any time you do not understand a procedure described in this guide or if the system does not perform as expected, Dell provides a number of
tools to help you. For more information on these help tools, see "
Getting Help ."
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NOTE: Theft-deterrent devices are of differing designs. Before you purchase such a device, make sure it will work with the cable slot on
the computer.
1 Padlock ring
2 Security cable slot
1 Security cable slot
2 Padlock ring