Samsung SyncMaster 320MXn-2 - Manual (Page 99)

PowerSaver
This LCD Display has a built-in power management system called PowerSaver. This system
saves energy by switching your LCD Display to low-power mode when it has not been used
for a certain amount of time. The LCD Display automatically returns to normal operation when
you press a key on the keyboard. For energy conservation, turn your LCD Display OFF when
it is not needed, or when leaving it unattended for long periods. The PowerSaver system
operates with a VESA DPM compliant video card installed in your computer. Use the software
utility installed on your computer to set up this feature.