Epson 4SLC2-50 - Manual (Page 57)

Slide the suspend/resume switch to the right to temporarily stop
system activity when you do not need to use your computer for
short periods of time. The screen goes dark and the computer
suspends power to its components and devices; it continues to
supply power to the RAM. (If you are not going to use the
computer for a longer time—20 minutes or more, for
example—turn it off.)
To resume activity, slide the switch to the left or press the Shift
key. The computer resumes normal operation at the point at which
you suspended it.
Using Setup to Conserve Battery Power
The Setup program includes power management options that
enable you to conserve battery power. These options allow you to
control various functions of the computer so you don’t waste
power on devices you are not using.
The power management options are available from the
ADVANCED CHIPSET SETUP portion of the Setup program. You
can specify timeout periods for the LCD display, the hard disk
drive, and/or the system. For a complete description of these
options and the Setup program, see Chapter 5.
3-8 Powering the Computer