Lenovo ThinkPad T43p (English) Service and Troubleshooting guide for the Think - Page 39

Errors, without, messages - fan error

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Solving computer problems Message Operating system not found. Solution Verify the following: v The hard disk drive is correctly installed. v A startable diskette is in the diskette drive Fan error EMM386 Not Installed Unable to Set Page Frame Base Address. If you still see the same error message, check the boot sequence, using the BIOS Setup Utility. The cooling fan has failed. Have the computer serviced. Edit C:\CONFIG.SYS and change a line from device=C:\WINDOWS\EMM386.EXE RAM to device=C:\WINDOWS\EMM386.EXE NOEMS CardBus Configuration Error - Device Disabled and save this file. Go to the BIOS Setup Utility. Press F9 and then Enter to load the default setting. Thermal sensing error Authentification of system services failed. Press to resume. Press F10 and then Enter to restart the system. The thermal sensor is not functioning correctly. Have the computer serviced. The IBM Predesktop Area in the HDD is broken. To use the IBM Predesktop Area, get a Recovery CD, then recover the IBM Predesktop Area using it. Errors without messages Problem: When I turn on the machine, nothing appears on the screen and the machine does not beep while starting up. Note: If you are not sure whether you heard any beeps, turn off the computer; then turn it on again, and listen again. If you are using an external monitor, refer to "Computer screen problems" on page 25. Solution: If a power-on password is set, press any key to display the power-on password prompt, and then type the correct password and press Enter. If the power-on password prompt does not appear, the brightness level might be set to minimum brightness. Adjust the brightness level by pressing Fn+Home. If the screen still remains blank, make sure that: v The battery is installed correctly. Chapter 2. Solving computer problems 17

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Message
Solution
Operating
system
not
found.
Verify
the
following:
v
The
hard
disk
drive
is
correctly
installed.
v
A
startable
diskette
is
in
the
diskette
drive
If
you
still
see
the
same
error
message,
check
the
boot
sequence,
using
the
BIOS
Setup
Utility.
Fan
error
The
cooling
fan
has
failed.
Have
the
computer
serviced.
EMM386
Not
Installed
-
Unable
to
Set
Page
Frame
Base
Address.
Edit
C:\CONFIG.SYS
and
change
a
line
from
device=C:\WINDOWS\EMM386.EXE
RAM
to
device=C:\WINDOWS\EMM386.EXE
NOEMS
and
save
this
file.
CardBus
Configuration
Error
-
Device
Disabled
Go
to
the
BIOS
Setup
Utility.
Press
F9
and
then
Enter
to
load
the
default
setting.
Press
F10
and
then
Enter
to
restart
the
system.
Thermal
sensing
error
The
thermal
sensor
is
not
functioning
correctly.
Have
the
computer
serviced.
Authentification
of
system
services
failed.
Press
<Esc>
to
resume.
The
IBM
Predesktop
Area
in
the
HDD
is
broken.
To
use
the
IBM
Predesktop
Area,
get
a
Recovery
CD,
then
recover
the
IBM
Predesktop
Area
using
it.
Errors
without
messages
Problem:
When
I
turn
on
the
machine,
nothing
appears
on
the
screen
and
the
machine
does
not
beep
while
starting
up.
Note:
If
you
are
not
sure
whether
you
heard
any
beeps,
turn
off
the
computer;
then
turn
it
on
again,
and
listen
again.
If
you
are
using
an
external
monitor,
refer
to
“Computer
screen
problems”
on
page
25.
Solution:
If
a
power-on
password
is
set,
press
any
key
to
display
the
power-on
password
prompt,
and
then
type
the
correct
password
and
press
Enter.
If
the
power-on
password
prompt
does
not
appear,
the
brightness
level
might
be
set
to
minimum
brightness.
Adjust
the
brightness
level
by
pressing
Fn+Home.
If
the
screen
still
remains
blank,
make
sure
that:
v
The
battery
is
installed
correctly.
Solving
computer
problems
Chapter
2.
Solving
computer
problems
17