Lenovo ThinkCentre A52 Hardware Maintenance Manual - Page 53

Diagnostics, using, PC-Doctor

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Chapter 5. Diagnostics using PC-Doctor for DOS Diagnostics are provided by the PC-Doctor program for DOS. These include a full range of diagnostic utilities to determine the operating condition of the computer's hardware components. You can the run diagnostics from the Rescue and Recovery™ workspace or you can create a bootable diagnostic diskette from the Rescue and Recovery workspace. Alternatively, you can download either a diskette image or a startable CD-ROM image (.iso file) from the Customer Support Web site and run diagnostics using them. The latest version of the diagnostics program is available from http://www.lenovo.com/think/support on the World Wide Web. Type your machine type into the Use Quick path field and click Go to find the downloadable files that are specific to the computer. See "Diagnostics program download" on page 48. Diagnostic error messages appear when a test program finds a problem with a hardware option. For the test programs to properly determine if a test Passed, Failed or Aborted, the test programs check the error-return code at test completion. See "Diagnostic error codes" on page 59. If an installed device is not recognized by the diagnostics program, that device might be defective. Starting PC-Doctor from the Rescue and Recovery workspace This procedure describes how to start PC-Doctor from the Rescue and Recovery workspace. 1. If your computer is already on when you start this procedure, shut down the operating system and turn off the computer. 2. To launch the Rescue and Recovery workspace, repeatedly press the F11 key as you turn on the computer. Note: If a user password or an administrator password has been set, the Rescue and Recovery workspace is not displayed until you type the password. 3. When the Rescue and Recovery workspace is displayed, look for ″Troubleshoot″ on the left side of the screen. Click Diagnose hardware. Notes: a. Additional diagnostic information is available from the Rescue and Recovery workspace, such as a diagnostic overview. Refer to the Rescue and Recovery help system for details. b. After selecting Diagnose hardware, make sure the computer is restarted using the restart button on the Rescue and Recovery workspace. Do not use the power switch to start the reboot. c. You can also create a set of diagnostic disks from the Rescue and Recovery workspace by clicking Create diagnostic disks from the Rescue and Recovery menu. © Lenovo 2005, 2008. Portions © IBM Corp. 2005. 47

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Chapter
5.
Diagnostics
using
PC-Doctor
for
DOS
Diagnostics
are
provided
by
the
PC-Doctor
program
for
DOS.
These
include
a
full
range
of
diagnostic
utilities
to
determine
the
operating
condition
of
the
computer’s
hardware
components.
You
can
the
run
diagnostics
from
the
Rescue
and
Recovery
™
workspace
or
you
can
create
a
bootable
diagnostic
diskette
from
the
Rescue
and
Recovery
workspace.
Alternatively,
you
can
download
either
a
diskette
image
or
a
startable
CD-ROM
image
(.iso
file)
from
the
Customer
Support
Web
site
and
run
diagnostics
using
them.
The
latest
version
of
the
diagnostics
program
is
available
from
on
the
World
Wide
Web.
Type
your
machine
type
into
the
Use
Quick
path
field
and
click
Go
to
find
the
downloadable
files
that
are
specific
to
the
computer.
See
“Diagnostics
program
download”
on
page
48.
Diagnostic
error
messages
appear
when
a
test
program
finds
a
problem
with
a
hardware
option.
For
the
test
programs
to
properly
determine
if
a
test
Passed
,
Failed
or
Aborted
,
the
test
programs
check
the
error-return
code
at
test
completion.
See
“Diagnostic
error
codes”
on
page
59.
If
an
installed
device
is
not
recognized
by
the
diagnostics
program,
that
device
might
be
defective.
Starting
PC-Doctor
from
the
Rescue
and
Recovery
workspace
This
procedure
describes
how
to
start
PC-Doctor
from
the
Rescue
and
Recovery
workspace.
1.
If
your
computer
is
already
on
when
you
start
this
procedure,
shut
down
the
operating
system
and
turn
off
the
computer.
2.
To
launch
the
Rescue
and
Recovery
workspace,
repeatedly
press
the
F11
key
as
you
turn
on
the
computer.
Note:
If
a
user
password
or
an
administrator
password
has
been
set,
the
Rescue
and
Recovery
workspace
is
not
displayed
until
you
type
the
password.
3.
When
the
Rescue
and
Recovery
workspace
is
displayed,
look
for
″
Troubleshoot
″
on
the
left
side
of
the
screen.
Click
Diagnose
hardware
.
Notes:
a.
Additional
diagnostic
information
is
available
from
the
Rescue
and
Recovery
workspace,
such
as
a
diagnostic
overview.
Refer
to
the
Rescue
and
Recovery
help
system
for
details.
b.
After
selecting
Diagnose
hardware,
make
sure
the
computer
is
restarted
using
the
restart
button
on
the
Rescue
and
Recovery
workspace.
Do
not
use
the
power
switch
to
start
the
reboot.
c.
You
can
also
create
a
set
of
diagnostic
disks
from
the
Rescue
and
Recovery
workspace
by
clicking
Create
diagnostic
disks
from
the
Rescue
and
Recovery
menu.
©
Lenovo
2005,
2008.
Portions
©
IBM
Corp.
2005.
47