Using The Numeric Keypad - Compaq Armada 4200 Reference Manual

Special Function Keys
Key
Ctrl+Alt+Delete
Fn + suspend
Ctrl+Power

Using the Numeric Keypad

The embedded numeric keypad is a section of the keyboard that
converts to a numeric keypad when the NumLk function is
activated. This is done by pressing Fn+NumLk. Use this toggle key
function to enable and disable the embedded numeric keypad.
Embedded Numeric Keypad
3-8 Using Keyboard Shortcuts
Continued
Function
Restarts the system after the computer has been
turned on and is locked up while in MS-DOS mode.
NOTE:
Shut Down on the Windows Start menu is
the recommended way to restart the computer while
in Windows. Also stops the restoration of information
when the computer exits Hibernation.
Initiates Hibernation.
Resets the system in case of a system lockup, when
the mouse doesn't work and Ctrl+Alt+Del is not
recognized by the unit.