Lenovo M55e User Manual - Page 71

Troubleshooting, diagnostics

Get Lenovo M55e - ThinkCentre - 9645 PDF manuals and user guides
UPC - 883609167608
View all Lenovo M55e manuals
Add to My Manuals
Save this manual to your list of manuals

Page 71 highlights

Chapter 7. Troubleshooting and diagnostics This chapter describes some basic troubleshooting and diagnostic programs. If your computer problem is not described here, see Chapter 8, "Getting information, help, and service," on page 61 for additional troubleshooting resources. Basic troubleshooting The following table provides information to help you troubleshoot your computer problem. Symptom The computer does not start when you press the power button. Action Verify that: v The power cord is plugged into the rear of the computer and into a working electrical outlet. v If your computer has a secondary power switch on the back of the computer, ensure that it is switched on. v The power indicator on the front of the computer is on. v The voltage is set to the correct setting for your country. The monitor screen is blank. If you cannot correct the problem, have the computer serviced. Refer to the safety and warranty information that is provided with your computer for a list of service and support telephone numbers. Verify that: v The monitor cable is securely attached to the rear of the monitor and to the rear of the computer. v The monitor power cord is plugged into the monitor and into a working electrical outlet. v The monitor is turned on and the brightness and contrast controls are set correctly. v The voltage is set to the correct setting for your country. v The monitor signal cable is securely connected to the monitor and to the monitor connector on the computer. Note: If your computer has two monitor connectors, verify that your monitor is connected to the one in the AGP option connector rather than the one in the rear of the system board. For more information, "Connecting your computer" on page 3. If you cannot correct the problem, have the computer serviced. Refer to the safety and warranty information that is provided with your computer for a list of service and support telephone numbers. © Lenovo 2005, 2007. Portions © IBM Corp. 2005. 53

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
  • 71
  • 72
  • 73
  • 74
  • 75
  • 76
  • 77
  • 78
  • 79
  • 80
  • 81
  • 82
  • 83
  • 84
  • 85
  • 86
  • 87
  • 88
  • 89
  • 90
  • 91
  • 92
  • 93
  • 94
  • 95
  • 96
Chapter
7.
Troubleshooting
and
diagnostics
This
chapter
describes
some
basic
troubleshooting
and
diagnostic
programs.
If
your
computer
problem
is
not
described
here,
see
Chapter
8,
“Getting
information,
help,
and
service,”
on
page
61
for
additional
troubleshooting
resources.
Basic
troubleshooting
The
following
table
provides
information
to
help
you
troubleshoot
your
computer
problem.
Symptom
Action
The
computer
does
not
start
when
you
press
the
power
button.
Verify
that:
v
The
power
cord
is
plugged
into
the
rear
of
the
computer
and
into
a
working
electrical
outlet.
v
If
your
computer
has
a
secondary
power
switch
on
the
back
of
the
computer,
ensure
that
it
is
switched
on.
v
The
power
indicator
on
the
front
of
the
computer
is
on.
v
The
voltage
is
set
to
the
correct
setting
for
your
country.
If
you
cannot
correct
the
problem,
have
the
computer
serviced.
Refer
to
the
safety
and
warranty
information
that
is
provided
with
your
computer
for
a
list
of
service
and
support
telephone
numbers.
The
monitor
screen
is
blank.
Verify
that:
v
The
monitor
cable
is
securely
attached
to
the
rear
of
the
monitor
and
to
the
rear
of
the
computer.
v
The
monitor
power
cord
is
plugged
into
the
monitor
and
into
a
working
electrical
outlet.
v
The
monitor
is
turned
on
and
the
brightness
and
contrast
controls
are
set
correctly.
v
The
voltage
is
set
to
the
correct
setting
for
your
country.
v
The
monitor
signal
cable
is
securely
connected
to
the
monitor
and
to
the
monitor
connector
on
the
computer.
Note:
If
your
computer
has
two
monitor
connectors,
verify
that
your
monitor
is
connected
to
the
one
in
the
AGP
option
connector
rather
than
the
one
in
the
rear
of
the
system
board.
For
more
information,
“Connecting
your
computer”
on
page
3.
If
you
cannot
correct
the
problem,
have
the
computer
serviced.
Refer
to
the
safety
and
warranty
information
that
is
provided
with
your
computer
for
a
list
of
service
and
support
telephone
numbers.
©
Lenovo
2005,
2007.
Portions
©
IBM
Corp.
2005.
53