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Lenovo
7749
Manual Do Utilizador
Lenovo 7749 Manual Do Utilizador
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Contents
Chapter
1.
About
this
manual
.
.
.
.
. 1
Important
safety
information
.
.
.
.
.
.
.
.
. 1
Important
information
about
replacing
the
RoHS
compliant
FRUs
.
.
.
.
.
.
.
.
.
.
.
.
. 2
Chapter
2.
Safety
information
.
.
.
.
. 3
General
safety
.
.
.
.
.
.
.
.
.
.
.
.
.
. 3
Electrical
safety
.
.
.
.
.
.
.
.
.
.
.
.
. 3
Voltage-selection
switch
.
.
.
.
.
.
.
.
.
.
. 5
Safety
inspection
guide
.
.
.
.
.
.
.
.
.
.
. 5
Handling
electrostatic
discharge-sensitive
devices
.
. 6
Grounding
requirements
.
.
.
.
.
.
.
.
.
. 7
Safety
notices
(multi-lingual
translations)
.
.
.
.
. 7
Chapter
3.
General
information
.
.
.
. 39
Lenovo
Care
.
.
.
.
.
.
.
.
.
.
.
.
.
. 39
Additional
information
resources
.
.
.
.
.
.
. 39
Specifications
.
.
.
.
.
.
.
.
.
.
.
.
.
. 40
For
machine
types:
7515,
7523,
7569,
7611,
7706,
7717,
7719,
7749,
and
7774.
.
.
.
.
.
.
.
. 40
For
machine
types:
7522,
7560,
7610,
7705,
7715,
7718,
7721,
7773,
and
7799.
.
.
.
.
.
.
.
. 40
For
all
machine
types
.
.
.
.
.
.
.
.
.
. 41
Chapter
4.
General
checkout
.
.
.
.
. 43
Problem
determination
tips
.
.
.
.
.
.
.
.
. 43
Chapter
5.
Diagnostics
.
.
.
.
.
.
.
. 45
Lenovo
System
Toolbox
.
.
.
.
.
.
.
.
.
. 45
PC-Doctor
for
Windows
PE
.
.
.
.
.
.
.
.
. 45
Running
diagnostics
from
the
Rescue
and
Recovery
workspace
.
.
.
.
.
.
.
.
.
. 46
PC-Doctor
for
DOS
.
.
.
.
.
.
.
.
.
.
.
. 46
Creating
a
diagnostic
CD/DVD
image
.
.
.
. 46
Running
diagnostics
from
the
disc
.
.
.
.
.
. 46
Navigating
through
the
diagnostics
programs
.
. 47
Running
tests
.
.
.
.
.
.
.
.
.
.
.
.
. 47
Viewing
the
test
log
.
.
.
.
.
.
.
.
.
. 48
Chapter
6.
Using
the
Setup
Utility
.
.
. 49
Starting
the
Setup
Utility
program
.
.
.
.
.
.
. 49
Viewing
and
changing
settings
.
.
.
.
.
.
.
. 49
Using
passwords
.
.
.
.
.
.
.
.
.
.
.
. 49
Password
considerations
.
.
.
.
.
.
.
.
. 50
Power-On
Password
.
.
.
.
.
.
.
.
.
. 50
Privileged
Access
Password
.
.
.
.
.
.
.
. 50
Setting,
changing,
and
deleting
a
password
.
.
. 50
Enabling
or
disabling
a
device
.
.
.
.
.
.
.
. 51
Selecting
a
startup
device
.
.
.
.
.
.
.
.
.
. 51
Selecting
a
temporary
startup
device
.
.
.
.
. 51
Selecting
or
changing
the
startup
device
sequence
52
Advanced
settings
.
.
.
.
.
.
.
.
.
.
.
. 52
Exiting
from
the
Setup
Utility
program
.
.
.
.
. 52
Chapter
7.
Symptom-to-FRU
index
.
.
. 53
Hard
disk
drive
boot
error
.
.
.
.
.
.
.
.
. 53
Power
supply
problems
.
.
.
.
.
.
.
.
.
. 53
Diagnostic
error
codes
.
.
.
.
.
.
.
.
.
.
. 54
Beep
symptoms
.
.
.
.
.
.
.
.
.
.
.
.
. 76
POST
error
codes
.
.
.
.
.
.
.
.
.
.
.
. 77
Miscellaneous
error
messages
.
.
.
.
.
.
.
. 79
Undetermined
problems
.
.
.
.
.
.
.
.
.
. 80
Chapter
8.
Replacing
FRUs
(Machine
Types:
7515,
7523,
7569,
7611,
7706,
7717,
7719,
7749,
and
7774.)
.
.
.
.
. 83
Locating
connectors
on
the
front
of
your
computer
84
Locating
connectors
on
the
rear
of
your
computer
85
Removing
the
computer
cover
.
.
.
.
.
.
.
. 86
Locating
components
.
.
.
.
.
.
.
.
.
.
. 88
Locating
parts
on
the
system
board
.
.
.
.
.
. 89
Removing
and
reinstalling
the
front
bezel
.
.
.
. 89
Installing
or
replacing
a
memory
module
.
.
.
. 90
Installing
or
replacing
an
adapter
card
.
.
.
.
. 92
Replacing
the
battery
.
.
.
.
.
.
.
.
.
.
. 95
Replacing
the
power
supply
assembly
.
.
.
.
. 96
Replacing
the
heat
sink
and
fan
assembly
.
.
.
. 98
Replacing
the
microprocessor
.
.
.
.
.
.
.
. 100
Replacing
the
system
board
.
.
.
.
.
.
.
. 103
Replacing
the
primary
hard
disk
drive
.
.
.
.
. 105
Replacing
the
secondary
hard
disk
drive
.
.
.
. 107
Replacing
the
optical
drive
.
.
.
.
.
.
.
.
. 110
Replacing
the
diskette
drive
or
card
reader
.
.
. 112
Replacing
the
front
fan
assembly
.
.
.
.
.
.
. 113
Replacing
the
rear
fan
assembly
.
.
.
.
.
.
. 115
Replacing
the
internal
speaker
.
.
.
.
.
.
.
. 117
Replacing
the
front
audio
and
USB
assembly
.
.
. 119
Completing
the
FRU
replacement
.
.
.
.
.
. 120
Chapter
9.
Replacing
FRUs
(Machine
Types:
7522,
7560,
7610,
7705,
7715,
7718,
7721,
7773,
and
7799.)
.
.
.
.
. 123
Locating
connectors
on
the
front
of
the
computer
124
Locating
connectors
on
the
rear
of
the
computer
125
Opening
the
computer
cover
.
.
.
.
.
.
.
. 126
Accessing
the
system
board
components
and
drives
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 127
Locating
components
.
.
.
.
.
.
.
.
.
.
. 128
Locating
parts
on
the
system
board
.
.
.
.
.
. 129
Installing
or
replacing
a
memory
module
.
.
.
. 130
Installing
or
replacing
an
adapter
card
.
.
.
.
. 132
Replacing
the
battery
.
.
.
.
.
.
.
.
.
.
. 134
Replacing
the
hard
disk
drive
.
.
.
.
.
.
.
. 136
Replacing
the
optical
drive
.
.
.
.
.
.
.
.
. 137
Replacing
the
power
supply
assembly
.
.
.
.
. 140
Replacing
the
heat
sink
and
fan
assembly
.
.
.
. 142
Replacing
the
microprocessor
.
.
.
.
.
.
.
. 144
Replacing
the
system
board
.
.
.
.
.
.
.
. 147
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