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Lenovo
8423
用户手册
Lenovo 8423 用户手册
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62
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Contents
Important
safety
information
.
.
.
.
.
. v
Conditions
that
require
immediate
action
.
.
.
.
. v
General
safety
guidelines
.
.
.
.
.
.
.
.
.
. vi
Service
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. vi
Power
cords
and
power
adapters
.
.
.
.
.
. vii
Extension
cords
and
related
devices
.
.
.
.
. vii
Plugs
and
outlets
.
.
.
.
.
.
.
.
.
.
. viii
Batteries
.
.
.
.
.
.
.
.
.
.
.
.
.
. viii
Heat
and
product
ventilation
.
.
.
.
.
.
. ix
CD
and
DVD
drive
safety
.
.
.
.
.
.
.
.
. ix
Additional
safety
information
.
.
.
.
.
.
.
.
. x
Lithium
battery
notice
.
.
.
.
.
.
.
.
.
.
. x
Modem
safety
information
.
.
.
.
.
.
.
.
. xi
Laser
compliance
statement
.
.
.
.
.
.
.
.
. xi
Power
supply
statement
.
.
.
.
.
.
.
.
.
. xii
Overview
.
.
.
.
.
.
.
.
.
.
.
.
. xiii
Information
resources
.
.
.
.
.
.
.
.
.
.
. xiii
Chapter
1.
Installing
options
.
.
.
.
.
. 1
Features
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 1
Available
options
.
.
.
.
.
.
.
.
.
.
.
.
. 4
Specifications
.
.
.
.
.
.
.
.
.
.
.
.
.
. 5
Tools
required
.
.
.
.
.
.
.
.
.
.
.
.
.
. 6
Handling
static-sensitive
devices
.
.
.
.
.
.
.
. 6
Installing
external
options
.
.
.
.
.
.
.
.
.
. 6
Locating
the
connectors
on
the
front
of
your
computer
.
.
.
.
.
.
.
.
.
.
.
.
.
. 7
Locating
the
connectors
on
the
rear
of
your
computer
.
.
.
.
.
.
.
.
.
.
.
.
.
. 8
Obtaining
device
drivers
.
.
.
.
.
.
.
.
. 9
Removing
the
cover
.
.
.
.
.
.
.
.
.
.
. 10
Locating
components
.
.
.
.
.
.
.
.
.
.
. 11
Identifying
parts
on
the
system
board
.
.
.
.
. 11
Installing
a
memory
module
.
.
.
.
.
.
.
.
. 12
Installing
adapters
.
.
.
.
.
.
.
.
.
.
.
. 14
Installing
internal
drives
.
.
.
.
.
.
.
.
.
. 15
Drive
specifications
.
.
.
.
.
.
.
.
.
.
. 16
Installing
a
drive
in
bay
1
or
bay
2
.
.
.
.
. 17
Installing
a
hard
disk
drive
in
bay
3
.
.
.
.
. 18
Connecting
drives
.
.
.
.
.
.
.
.
.
.
.
. 20
Connecting
the
first
optical
drive
.
.
.
.
.
. 20
Connecting
an
additional
optical
drive,
or
parallel
ATA
hard
disk
drive
.
.
.
.
.
.
.
. 21
Connecting
a
serial
ATA
hard
disk
drive
.
.
.
. 21
Installing
security
features
.
.
.
.
.
.
.
.
. 21
Padlock
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 22
Password
protection
.
.
.
.
.
.
.
.
.
. 22
Changing
the
battery
.
.
.
.
.
.
.
.
.
.
. 22
Erasing
a
lost
or
forgotten
password
(clearing
CMOS)
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 23
Replacing
the
cover
and
connecting
the
cables
.
.
. 24
Chapter
2.
Using
the
Setup
Utility
program
.
.
.
.
.
.
.
.
.
.
.
.
.
. 25
Starting
the
Setup
Utility
program
.
.
.
.
.
.
. 25
Viewing
and
changing
settings
.
.
.
.
.
.
.
. 25
Using
passwords
.
.
.
.
.
.
.
.
.
.
.
. 25
Password
considerations
.
.
.
.
.
.
.
.
. 25
User
Password
.
.
.
.
.
.
.
.
.
.
.
. 26
Administrator
Password
.
.
.
.
.
.
.
.
. 26
IDE
Drive
User
Password
.
.
.
.
.
.
.
. 26
IDE
Drive
Master
Password
.
.
.
.
.
.
.
. 26
Setting,
changing,
and
deleting
a
password
.
.
. 27
Using
Security
Profile
by
Device
.
.
.
.
.
.
. 27
Selecting
a
startup
device
.
.
.
.
.
.
.
.
.
. 27
Selecting
a
temporary
startup
device
.
.
.
.
. 28
Changing
the
startup
sequence
.
.
.
.
.
.
. 28
Exiting
from
the
Setup
Utility
program
.
.
.
.
. 28
Appendix
A.
Updating
system
programs
.
.
.
.
.
.
.
.
.
.
.
.
. 29
System
programs
.
.
.
.
.
.
.
.
.
.
.
. 29
Updating
(flashing)
BIOS
from
a
diskette
or
CD-ROM
.
.
.
.
.
.
.
.
.
.
.
.
.
. 29
Updating
(flashing)
BIOS
from
your
operating
system
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 29
Recovering
from
a
POST/BIOS
update
failure
.
.
. 30
Appendix
B.
Cleaning
the
mouse
.
.
. 31
Cleaning
an
optical
mouse
.
.
.
.
.
.
.
.
. 31
Cleaning
a
mouse
with
a
ball
.
.
.
.
.
.
.
. 31
Appendix
C.
Manual
modem
commands
.
.
.
.
.
.
.
.
.
.
.
.
. 33
Basic
AT
commands
.
.
.
.
.
.
.
.
.
.
. 33
Extended
AT
commands
.
.
.
.
.
.
.
.
.
. 35
MNP/V.42/V.42bis/V.44
commands
.
.
.
.
.
. 36
Fax
Class
1
commands
.
.
.
.
.
.
.
.
.
. 37
Fax
Class
2
commands
.
.
.
.
.
.
.
.
.
. 37
Voice
commands
.
.
.
.
.
.
.
.
.
.
.
.
. 38
Appendix
D.
Notices
.
.
.
.
.
.
.
.
. 41
Television
output
notice
.
.
.
.
.
.
.
.
.
. 42
Trademarks
.
.
.
.
.
.
.
.
.
.
.
.
.
. 42
Index
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 43
©
Lenovo
2005.
Portions
©
IBM
Corp.
2005.
iii
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