Lenovo N200 Hardware Maintenance Manual - Page 28

Power, management - timer

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Related service information 10. Select Yes in the Setup Configuration window. Both user HDP and master HDP will have been removed. Power management Note: Power management modes are not supported for APM operating system. To reduce power consumption, the computer has three power management modes: screen blank, sleep (standby), and hibernation. Screen blank mode If the time set on the "Turn off monitor" timer in the operating system expires, the LCD backlight turns off. To end screen blank mode and resume normal operation, press any key. Sleep (standby) mode When the computer enters sleep (standby) mode, the following events occur in addition to what occurs in screen blank mode: v The LCD is powered off. v The hard disk drive is powered off. v The CPU stops. To enter sleep (standby) mode, press Fn+F4. In certain circumstances, the computer goes into sleep (standby) mode automatically: v If a "suspend time" has been set on the timer, and the user does not do any operation with the keyboard, the hard disk, the parallel connector, or the diskette drive within that time. v If the battery indicator blinks orange, indicating that the battery power is low. (Alternatively, if Hibernate when battery becomes low has been selected in the "Power Management Properties" window, the computer goes into hibernation mode.) To cause the computer to return from sleep (standby) mode and resume operation, do one of the following: v Press the Fn key. v Open the LCD cover. v Turn on the power switch. Also, in the following event, the computer automatically returns from sleep (standby) mode and resumes operation: v The time set on the resume timer elapses. 22 MT 0687 Note: The computer does not accept any input immediately after it enters sleep (standby) mode. Wait a few seconds before taking any action to reenter operation mode. Hibernation mode In hibernation mode, the following occurs: v The system status, RAM, VRAM, and setup data are stored on the hard disk. v The system is powered off. To cause the computer to enter hibernation mode, do any of the following:

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10.
Select
Yes
in
the
Setup
Configuration
window.
Both
user
HDP
and
master
HDP
will
have
been
removed.
Power
management
Note:
Power
management
modes
are
not
supported
for
APM
operating
system.
To
reduce
power
consumption,
the
computer
has
three
power
management
modes:
screen
blank,
sleep
(standby),
and
hibernation.
Screen
blank
mode
If
the
time
set
on
the
“Turn
off
monitor”
timer
in
the
operating
system
expires,
the
LCD
backlight
turns
off.
To
end
screen
blank
mode
and
resume
normal
operation,
press
any
key.
Sleep
(standby)
mode
When
the
computer
enters
sleep
(standby)
mode,
the
following
events
occur
in
addition
to
what
occurs
in
screen
blank
mode:
v
The
LCD
is
powered
off.
v
The
hard
disk
drive
is
powered
off.
v
The
CPU
stops.
To
enter
sleep
(standby)
mode,
press
Fn+F4.
In
certain
circumstances,
the
computer
goes
into
sleep
(standby)
mode
automatically:
v
If
a
“suspend
time”
has
been
set
on
the
timer,
and
the
user
does
not
do
any
operation
with
the
keyboard,
the
hard
disk,
the
parallel
connector,
or
the
diskette
drive
within
that
time.
v
If
the
battery
indicator
blinks
orange,
indicating
that
the
battery
power
is
low.
(Alternatively,
if
Hibernate
when
battery
becomes
low
has
been
selected
in
the
“Power
Management
Properties”
window,
the
computer
goes
into
hibernation
mode.)
To
cause
the
computer
to
return
from
sleep
(standby)
mode
and
resume
operation,
do
one
of
the
following:
v
Press
the
Fn
key.
v
Open
the
LCD
cover.
v
Turn
on
the
power
switch.
Also,
in
the
following
event,
the
computer
automatically
returns
from
sleep
(standby)
mode
and
resumes
operation:
v
The
time
set
on
the
resume
timer
elapses.
Note:
The
computer
does
not
accept
any
input
immediately
after
it
enters
sleep
(standby)
mode.
Wait
a
few
seconds
before
taking
any
action
to
reenter
operation
mode.
Hibernation
mode
In
hibernation
mode,
the
following
occurs:
v
The
system
status,
RAM,
VRAM,
and
setup
data
are
stored
on
the
hard
disk.
v
The
system
is
powered
off.
To
cause
the
computer
to
enter
hibernation
mode,
do
any
of
the
following:
Related
service
information
22
MT
0687