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
the
computer
off
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
2009
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