Lenovo ThinkCentre A52 (English) Quick reference guide - Page 45

Error, codes

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6. Shut down or restart your computer. Error codes The following table includes some of the more common error codes that might be displayed when your computer is performing the power-on self-test (POST). v Record error codes that are displayed. If you call for service, you will be asked for the error codes. v If there are multiple error codes, always work to solve problems in the order in which the error codes are displayed. Usually, solving the first error code will solve succeeding ones. v If the error code is not in the following table, more in-depth troubleshooting is required. - If the operating system starts when you turn on your computer, see "PC Doctor for DOS Diagnostics" on page 25 to run diagnostics. Also, use Access Help for more information on problem solving. - If the operating system will not start, have the computer serviced. Code 135 162 Description Fan failure A change in device configuration occurred. Action Have the computer serviced. Verify that: v All external devices are turned on. v All devices are properly installed and securely connected. Reload the default configuration settings using the Setup Utility. If you cannot correct the problem, have the computer serviced. 164 System memory size is less Add more memory to your computer than expected. or use the Setup Utility to accept the new memory amount. 210 or 211 A keyboard error has occurred. If you cannot correct the problem, have the computer serviced. Verify that: v The keyboard is properly connected. v No keys on the keyboard are stuck. If you cannot correct the problem, have the computer serviced. Chapter 5. Troubleshooting and diagnostics 27

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6.
Shut
down
or
restart
your
computer.
Error
codes
The
following
table
includes
some
of
the
more
common
error
codes
that
might
be
displayed
when
your
computer
is
performing
the
power-on
self-test
(POST).
v
Record
error
codes
that
are
displayed.
If
you
call
for
service,
you
will
be
asked
for
the
error
codes.
v
If
there
are
multiple
error
codes,
always
work
to
solve
problems
in
the
order
in
which
the
error
codes
are
displayed.
Usually,
solving
the
first
error
code
will
solve
succeeding
ones.
v
If
the
error
code
is
not
in
the
following
table,
more
in-depth
troubleshooting
is
required.
–
If
the
operating
system
starts
when
you
turn
on
your
computer,
see
“PC
Doctor
for
DOS
Diagnostics”
on
page
25
to
run
diagnostics.
Also,
use
Access
Help
for
more
information
on
problem
solving.
–
If
the
operating
system
will
not
start,
have
the
computer
serviced.
Code
Description
Action
135
Fan
failure
Have
the
computer
serviced.
162
A
change
in
device
configuration
occurred.
Verify
that:
v
All
external
devices
are
turned
on.
v
All
devices
are
properly
installed
and
securely
connected.
Reload
the
default
configuration
settings
using
the
Setup
Utility.
If
you
cannot
correct
the
problem,
have
the
computer
serviced.
164
System
memory
size
is
less
than
expected.
Add
more
memory
to
your
computer
or
use
the
Setup
Utility
to
accept
the
new
memory
amount.
If
you
cannot
correct
the
problem,
have
the
computer
serviced.
210
or
211
A
keyboard
error
has
occurred.
Verify
that:
v
The
keyboard
is
properly
connected.
v
No
keys
on
the
keyboard
are
stuck.
If
you
cannot
correct
the
problem,
have
the
computer
serviced.
Chapter
5.
Troubleshooting
and
diagnostics
27