Lenovo ThinkCentre M55 (English) User guide - Page 57

Using, Setup, Utility

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Chapter 5. Using the Setup Utility The Setup Utility program is stored in the electrically erasable programmable read-only memory (EEPROM) of your computer. The Setup Utility program is used to view and change the configuration settings of your computer, regardless of which operating system you are using. However, the operating-system settings might override any similar settings in the Setup Utility program. Starting the Setup Utility program To start the Setup Utility program, do the following: 1. If your computer is already on when you start this procedure, shut down the operating system and turn off the computer. 2. Repeatedly press and release the F1 key while turning on your computer. Note: If a user password or an administrator password has been set, the Setup Utility program menu is not displayed until you type your password. See "Using passwords" for more information. The Setup Utility might start automatically when POST detects that hardware has been removed or new hardware has been installed in your computer. Viewing and changing settings The Setup Utility program menu lists items that identify system configuration topics. When working with the Setup Utility program menu, you must use the keyboard. The keys used to perform various tasks are displayed at the bottom of each screen. Using passwords By using the Setup Utility program, you can set passwords to prevent unauthorized persons from gaining access to your computer and data. The following types of passwords are available: v User Password v Administrator Password You do not have to set any passwords to use your computer. However, if you decide to set any passwords, read the following sections. Password considerations A password can be any combination of up to twelve characters (a-z and 0-9) and symbols. For security reasons, it is a good idea to use a strong password that cannot be easily compromised. Strong passwords typically adhere to the following rules: v Have at least eight characters in length v Contain at least one alphabetic character, one numeric character, and one symbol v Contain at least one of the following symbols v You can also use the space bar © Lenovo 2005, 2006. Portions © IBM Corp. 2005. 41

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Chapter
5.
Using
the
Setup
Utility
The
Setup
Utility
program
is
stored
in
the
electrically
erasable
programmable
read-only
memory
(EEPROM)
of
your
computer.
The
Setup
Utility
program
is
used
to
view
and
change
the
configuration
settings
of
your
computer,
regardless
of
which
operating
system
you
are
using.
However,
the
operating-system
settings
might
override
any
similar
settings
in
the
Setup
Utility
program.
Starting
the
Setup
Utility
program
To
start
the
Setup
Utility
program,
do
the
following:
1.
If
your
computer
is
already
on
when
you
start
this
procedure,
shut
down
the
operating
system
and
turn
off
the
computer.
2.
Repeatedly
press
and
release
the
F1
key
while
turning
on
your
computer.
Note:
If
a
user
password
or
an
administrator
password
has
been
set,
the
Setup
Utility
program
menu
is
not
displayed
until
you
type
your
password.
See
“Using
passwords”
for
more
information.
The
Setup
Utility
might
start
automatically
when
POST
detects
that
hardware
has
been
removed
or
new
hardware
has
been
installed
in
your
computer.
Viewing
and
changing
settings
The
Setup
Utility
program
menu
lists
items
that
identify
system
configuration
topics.
When
working
with
the
Setup
Utility
program
menu,
you
must
use
the
keyboard.
The
keys
used
to
perform
various
tasks
are
displayed
at
the
bottom
of
each
screen.
Using
passwords
By
using
the
Setup
Utility
program,
you
can
set
passwords
to
prevent
unauthorized
persons
from
gaining
access
to
your
computer
and
data.
The
following
types
of
passwords
are
available:
v
User
Password
v
Administrator
Password
You
do
not
have
to
set
any
passwords
to
use
your
computer.
However,
if
you
decide
to
set
any
passwords,
read
the
following
sections.
Password
considerations
A
password
can
be
any
combination
of
up
to
twelve
characters
(a-z
and
0-9)
and
symbols.
For
security
reasons,
it
is
a
good
idea
to
use
a
strong
password
that
cannot
be
easily
compromised.
Strong
passwords
typically
adhere
to
the
following
rules:
v
Have
at
least
eight
characters
in
length
v
Contain
at
least
one
alphabetic
character,
one
numeric
character,
and
one
symbol
v
Contain
at
least
one
of
the
following
symbols:
,
.
/
`
;
'
[]
v
You
can
also
use
the
space
bar
©
Lenovo
2005,
2006.
Portions
©
IBM
Corp.
2005.
41