System Overview 1-7
Figure 1-4. Battery Charge Gauge
NOTE: Figure 1-4 shows a main battery. For the secondary battery, the same
button and lights are present, but are located on top of the battery and can be
seen only when the secondary battery is out of the computer.
S
ystem Power
The
ower button controls
ower to the s
stem. The com
uter receives
ower
from either the AC ada
ter connected to an AC
ower source or from u
to two
batteries. If
ou use the AC ada
ter, constant
ower is available to the com-
uter. If
ou use one or two batteries, the s
stem has built-in
ower
mana
ement features that extend batter
life b
removin
ower from
arts of
the com
uter that are not bein
used.
Power Conservation
Attach the AC
ower ada
ter to the com
uter, whenever
ossible, to conserve
batter
ower. When the AC ada
ter is attached, the batter
is char
ed while the
com
uter uses AC
ower.
The Power Menu of the Setu
ro
ram has
ower conservation features. To
o
en the Main Menu of the Setu
ro
ram, Press <F2> durin
the boot
rocess.
When activated, each
ower conservation feature turns off or slows down one
or more functions while the com
uter is idle. The
ower conservation features
are as follows:
•
Standb
mode — To activate this feature, select the Standb
Time-Out
o
tion in the Power Menu of the Setu
ro
ram. To deactivate the feature,
move the cursor or
ress an
ke
on the built-in or external ke
board.
•
Save-to-RAM sus
end mode — To activate this feature,
ress <Fn><Esc>
or set the Sus
end Time-Out o
tion in the Power Menu of the Setu
ro-
ram. When save-to-RAM sus
end mode is activated, the icons c
cle
throu
h the ke
board indicators area of the status dis
la
anel. To deacti-
vate this feature,
ress the
ower button. The com
uter ma
take several
seconds to return to normal o
eration. Use the Resume On Modem Rin
o
tion in the Power Menu of the Setu
ro
ram to enable the com
uter to
automaticall
answer calls to external modems attached to the com
uter’s
serial
ort or to determine how lon
the com
uter remains in save-to-RAM
sus
end mode before resumin
normal o
eration.
indicator lights
status button
