Lenovo ThinkCentre M57 English (User guide) - Page 21

Updating, system, programs

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Chapter 5. Updating system programs This chapter contains information about updating POST/BIOS and how to recover from a POST/BIOS update failure. Using system programs System programs are the basic layer of software built into your computer. They include the power-on self-test (POST), the basic input/output system (BIOS) code, and the Setup Utility program. POST is a set of tests and procedures that are performed each time you turn on your computer. BIOS is a layer of software that translates instructions from other layers of software into electrical signals that the computer hardware can execute. You can use the Setup Utility program to view and change the configuration and setup of your computer. Your computer system board has a module called electrically erasable programmable read-only memory (EEPROM, also referred to as flash memory). You can easily update POST, BIOS, and the Setup Utility program by starting your computer using a flash update disc or by running a special update program from your operating system. Lenovo might make changes and enhancements to the POST/BIOS. When updates are released, they are available as downloadable files on the Lenovo Web site at http://www.lenovo.com. Instructions for using the POST/BIOS updates are available in a TXT file that is included with the update files. For most models, you can download either an update program to create a system-program-update (flash) disc or an update program that can be run from the operating system. Note: You can download a self starting bootable CD/DVD image (known as an ISO image) of the diagnostics program to support systems without a diskette drive from: http://www.lenovo.com Updating (flashing) BIOS from a disc This section describes how to update (flash) the BIOS using a disc. System BIOS program updates are available at: http://www.lenovo.com/support 1. To update (flash) the BIOS from a disc, make sure the computer is turned on. Insert the disc into the optical drive. 2. Turn off the computer and back on again. The update begins. 3. When you are prompted to select a language, press the number on your keyboard that corresponds to the language and then press Enter. 4. When prompted to change the serial number, press Y. 5. Type in the seven character serial number of your computer and then press Enter. 6. When prompted to change the machine type/model, press Y. 7. Type in the seven character machine type/model of your computer and then press Enter. 8. Follow the instructions on the screen to complete the update. © Copyright Lenovo 2008 13

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Chapter
5.
Updating
system
programs
This
chapter
contains
information
about
updating
POST/BIOS
and
how
to
recover
from
a
POST/BIOS
update
failure.
Using
system
programs
System
programs
are
the
basic
layer
of
software
built
into
your
computer.
They
include
the
power-on
self-test
(POST),
the
basic
input/output
system
(BIOS)
code,
and
the
Setup
Utility
program.
POST
is
a
set
of
tests
and
procedures
that
are
performed
each
time
you
turn
on
your
computer.
BIOS
is
a
layer
of
software
that
translates
instructions
from
other
layers
of
software
into
electrical
signals
that
the
computer
hardware
can
execute.
You
can
use
the
Setup
Utility
program
to
view
and
change
the
configuration
and
setup
of
your
computer.
Your
computer
system
board
has
a
module
called
electrically
erasable
programmable
read-only
memory
(EEPROM,
also
referred
to
as
flash
memory).
You
can
easily
update
POST,
BIOS,
and
the
Setup
Utility
program
by
starting
your
computer
using
a
flash
update
disc
or
by
running
a
special
update
program
from
your
operating
system.
Lenovo
might
make
changes
and
enhancements
to
the
POST/BIOS.
When
updates
are
released,
they
are
available
as
downloadable
files
on
the
Lenovo
Web
site
at
Instructions
for
using
the
POST/BIOS
updates
are
available
in
a
TXT
file
that
is
included
with
the
update
files.
For
most
models,
you
can
download
either
an
update
program
to
create
a
system-program-update
(flash)
disc
or
an
update
program
that
can
be
run
from
the
operating
system.
Note:
You
can
download
a
self
starting
bootable
CD/DVD
image
(known
as
an
ISO
image)
of
the
diagnostics
program
to
support
systems
without
a
diskette
drive
from:
Updating
(flashing)
BIOS
from
a
disc
This
section
describes
how
to
update
(flash)
the
BIOS
using
a
disc.
System
BIOS
program
updates
are
available
at:
1.
To
update
(flash)
the
BIOS
from
a
disc,
make
sure
the
computer
is
turned
on.
Insert
the
disc
into
the
optical
drive.
2.
Turn
off
the
computer
and
back
on
again.
The
update
begins.
3.
When
you
are
prompted
to
select
a
language,
press
the
number
on
your
keyboard
that
corresponds
to
the
language
and
then
press
Enter.
4.
When
prompted
to
change
the
serial
number,
press
Y.
5.
Type
in
the
seven
character
serial
number
of
your
computer
and
then
press
Enter.
6.
When
prompted
to
change
the
machine
type/model,
press
Y.
7.
Type
in
the
seven
character
machine
type/model
of
your
computer
and
then
press
Enter.
8.
Follow
the
instructions
on
the
screen
to
complete
the
update.
©
Copyright
Lenovo
2008
13