Lenovo 81713GU User Manual - Page 43

Appendix, Updating, POST/BIOS

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Appendix A. Updating POST/BIOS This appendix contains information about updating POST/BIOS and how to recover from a POST/BIOS update failure. POST/BIOS POST and BIOS are the basic layer of software that is built into your computer. They include the power-on self-test (POST), the basic input/output system (BIOS) code, and the IBM Setup Utility program. POST is a set of tests and procedures that is 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 understand. You can use the IBM 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 IBM Setup Utility program by starting your computer using a flash update diskette or by running a special update program from your operating system. IBM might make changes and enhancements to the POST/BIOS. When updates are released, they are available as downloadable files on the World Wide Web (see the Quick Reference). 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) diskette or an update program that can be run from the operating system. Note: You can download a self starting bootable CD image (known as an .iso image) of the diagnostics program from http://www.ibm.com/pc/support to support systems without a diskette drive. Updating (flashing) BIOS from a diskette 1. Insert a POST/BIOS update (flash) diskette into the diskette drive (drive A) in your computer. POST/BIOS updates are available at http://www.ibm.com/pc/support/ on the World Wide Web. 2. Turn on the computer. If it is on already, you must turn it off and back on again. The update begins. Updating (flashing) BIOS from your operating system Note: Due to constant improvements being made to the IBM Web site, Web page content (including the links referenced in the following procedure) is subject to change. 1. From your browser, type http://www.pc.ibm.com/support in the address field and press Enter. 2. Locate Downloadable files for your type of computer. 3. Under Select your product, choose your machine type and click Go. 4. In Downloadable file by category, click BIOS. 5. Under Download files - BIOS by date, click your machine type. © Copyright IBM Corp. 2004 29

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Appendix
A.
Updating
POST/BIOS
This
appendix
contains
information
about
updating
POST/BIOS
and
how
to
recover
from
a
POST/BIOS
update
failure.
POST/BIOS
POST
and
BIOS
are
the
basic
layer
of
software
that
is
built
into
your
computer.
They
include
the
power-on
self-test
(POST),
the
basic
input/output
system
(BIOS)
code,
and
the
IBM
Setup
Utility
program.
POST
is
a
set
of
tests
and
procedures
that
is
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
understand.
You
can
use
the
IBM
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
IBM
Setup
Utility
program
by
starting
your
computer
using
a
flash
update
diskette
or
by
running
a
special
update
program
from
your
operating
system.
IBM
might
make
changes
and
enhancements
to
the
POST/BIOS.
When
updates
are
released,
they
are
available
as
downloadable
files
on
the
World
Wide
Web
(see
the
Quick
Reference
).
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)
diskette
or
an
update
program
that
can
be
run
from
the
operating
system.
Note:
You
can
download
a
self
starting
bootable
CD
image
(known
as
an
.iso
image)
of
the
diagnostics
program
from
to
support
systems
without
a
diskette
drive.
Updating
(flashing)
BIOS
from
a
diskette
1.
Insert
a
POST/BIOS
update
(flash)
diskette
into
the
diskette
drive
(drive
A)
in
your
computer.
POST/BIOS
updates
are
available
at
on
the
World
Wide
Web.
2.
Turn
on
the
computer.
If
it
is
on
already,
you
must
turn
it
off
and
back
on
again.
The
update
begins.
Updating
(flashing)
BIOS
from
your
operating
system
Note:
Due
to
constant
improvements
being
made
to
the
IBM
Web
site,
Web
page
content
(including
the
links
referenced
in
the
following
procedure)
is
subject
to
change.
1.
From
your
browser,
type
in
the
address
field
and
press
Enter.
2.
Locate
Downloadable
files
for
your
type
of
computer.
3.
Under
Select
your
product,
choose
your
machine
type
and
click
Go
.
4.
In
Downloadable
file
by
category,
click
BIOS
.
5.
Under
Download
files
-
BIOS
by
date,
click
your
machine
type.
©
Copyright
IBM
Corp.
2004
29