Dell OptiPlex GX1, GXA, and Earlier Dell OptiPlex Computers
Shut down, and then restart the computer.
Press the <F2> key to enter the computer Setup screen or press the <Ctrl> + <ALT> + <Delete> key combination to enter the computer Setup screen.
Press the <Down Arrow> key to select Chassis Intrusion.
Press the <Right Arrow> key or the <Left Arrow> as appropriate to change the Chassis Intrusion option to one of the following options:
Enabled - This option resets the Alert! Cover was previously removed message. This option is designed for use in a managed environment. Use this option to generate an Alert! Cover was previously removed message when the computer cover is removed. Additionally, Detected appears next to Chassis Intrusion on the System Security screen when the computer cover is removed.
Enabled-Silent - This option is similar to the Enabled option. However, when the Enable-Silent option is selected, an Alert! Cover was previously removed message does not appear when the computer cover is removed. If the computer cover is removed, Detected appears next to Chassis Intrusion on the System Security screen.
Disabled - This option disables the generation of an Alert! Cover was previously removed message when the computer cover is removed. Additionally, when this option is selected, Detected no longer appears next to Chassis Intrusion when the computer cover is removed. This option may be suitable for use in an environment where it does not matter whether the computer cover is removed.
Press the <Esc> key to exit the Setup screen, use the <Arrow> keys to select Save Changes and Exit, and then press the <Enter> key.
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