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
v
Setup
Utility
program
and
hard
disk
drive
passwords
are
not
case
sensitive
v
Not
be
your
name
or
your
user
name
v
Not
be
a
common
word
or
a
common
name
v
Be
significantly
different
from
your
previous
password
User
Password
When
a
User
Password
is
set,
the
user
is
prompted
to
type
a
valid
password
each
time
the
computer
is
turned
on.
The
computer
cannot
be
used
until
a
valid
password
is
typed
from
the
keyboard.
Administrator
Password
Setting
an
Administrator
Password
deters
unauthorized
persons
from
changing
configuration
settings.
If
you
are
responsible
for
maintaining
the
settings
of
several
computers,
you
might
want
to
set
an
Administrator
Password.
After
you
set
an
Administrator
Password,
a
password
prompt
is
displayed
each
time
you
try
to
access
the
Setup
Utility
program.
If
you
type
the
wrong
password,
you
will
see
an
error
message.
If
you
type
the
wrong
password
three
times,
you
must
turn
the
computer
off
and
start
again.
If
both
the
user
and
administrator
passwords
are
set,
you
can
type
either
password.
However,
to
change
any
configuration
settings,
you
must
use
your
administrator
password.
Setting,
changing,
and
deleting
a
password
To
set,
change,
or
delete
a
password,
do
the
following:
Note:
A
password
can
be
any
combination
of
up
to
eight
characters
(A-
Z,
a-z,
and
0-9).
See
“Password
considerations”
on
page
49
for
more
information.
1.
Start
the
Setup
Utility
program
(see
“Starting
the
Setup
Utility
program”
on
page
49).
2.
From
the
Setup
Utility
program
menu,
select
Security
.
3.
Select
Set
Passwords
.
Read
the
information
displayed
on
the
right
side
of
the
screen.
Using
Security
Profile
by
Device
Security
Profile
by
Device
is
used
to
enable
or
disable
user
access
to
the
following
devices:
IDE
controller
When
this
feature
is
set
to
Disable
,
all
devices
connected
to
the
IDE
controller
(such
as
hard
disk
drives
or
the
CD-ROM
drive)
are
disabled
and
will
not
be
displayed
in
the
system
configuration.
Diskette
Drive
Access
When
this
feature
is
set
to
Disable
,
the
diskette
drive
cannot
be
accessed.
To
set
Security
Profile
by
Device,
do
the
following:
50
Hardware
Maintenance
Manual
Summary of Contents for ThinkCentre A55
Page 1: ...Hardware Maintenance Manual Types 9636 9638 9640 9641 9642 9643 9644 9645 ...
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Page 17: ...Chapter 2 Safety information 11 ...
Page 18: ... 18 kg 37 lbs 32 kg 70 5 lbs 55 kg 121 2 lbs 1 2 12 Hardware Maintenance Manual ...
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Page 23: ...1 2 Chapter 2 Safety information 17 ...
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Page 25: ...1 2 Chapter 2 Safety information 19 ...
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Page 115: ...Chapter 8 Replacing FRUs 109 ...
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Page 210: ...Part Number 42Y4652 Printed in USA 1P P N 42Y4652 ...
