Lenovo 4428-AB1 manual Understanding power management, Addressability Refresh rate

The display modes shown below have been optimized at the factory.

Table 2-3. Factory set display modes

Addressability	Refresh rate
640 x 350	70	Hz
640 x 480	60	Hz, 72 Hz, 75 Hz
720 x 400	70	Hz
800 x 600	60	Hz, 72 Hz, 75 Hz
1024 x 768	60	Hz, 70 Hz, 75 Hz
1280 x 1024	60	Hz, 70 Hz, 75 Hz

Understanding power management

Power management is invoked when the computer recognizes that you have not used your mouse or keyboard for a user-definable period. There are several states as described in the table below.

For optimal performance, switch off your monitor at the end of each working day, or whenever you expect to leave it unused for long periods during the day.

Table 2-4. Power indicator

			Restoring
State	Power Indicator	Screen	Operation	Compliance
On	Steady blue	Normal
Standby/Suspend	Steady amber	Blank	Press a key or	ENERGY STAR
			move the mouse
			There may be a
			slight delay
			before the image
			reappears.
			Note: Standby
			also occurs if
			there is no
			image output to
			the monitor.
Off	Off	Blank	Press a key or	ENERGY STAR
			move the mouse
			There may be a
			slight delay
			before the image
			reappears.

2-6Flat Panel Monitor User ’sGuide