Lenovo Portable Computer User Guide
Refer
to
the
Microsoft
Windows
guide
for
the
details
or
use
online
support.
Under
pure
DOS
system,
the
BIOS
controls
directly
the
power
management.
2.1.2
The
power
management
under
Windows
XP
ACPI
mode
Under
the
ACPI
mode
of
the
Microsoft
Windows
XP
operating
system,
the
system
power
management
will
be
controlled
by
the
operating
system,
so
all
the
power
management
settings
can
be
modified
through
Control
Panel
‐
>
Performance
and
Maintenance
‐
>
Power
Options
.
2.1.3
Turn
off
the
monitor
or
hard
disk
You
can
modify
the
power
schemes
to
turn
off
the
monitor
or
hard
disk
after
the
system
is
idle
for
a
certain
time,
through
Control
Panel
‐
>
Performance
and
Maintenance
‐
>
Power
Options
.
2.1.4
Standby
mode
Standby
mode
suspends
the
system
to
RAM
(STR).
Under
this
mode,
the
computer
turns
off
the
monitor
and
hard
disk
to
reduce
the
power
consumption
after
it
is
idle
for
a
certain
time.
Press
the
power
button
will
restore
the
previous
work
environment.
Note:
If
the
AC
adaptor
and
battery
pack
are
both
unplugged
from
the
computer
while
it
is
in
standby
mode,
all
the
data
that
is
not
saved
to
the
hard
disk
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