Lenovo 4428-AB1 - Manual (Page 15)

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
State Power Indicator Screen
Restoring
Operation Compliance
On Steady blue Normal
Standby/Suspend Steady amber Blank Press a key or
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.
ENERGY STAR
Off Off Blank Press a key or
move the mouse
There may be a
slight delay
before the image
reappears.
ENERGY STAR
2-6 Flat Panel Monitor User ’s Guide