Lenovo ThinkCentre M51 User Manual - Page 35

Erasing, forgotten, password, clearing

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Note: When the computer is turned on for the first time after battery replacement, an error message might be displayed. This is normal after replacing the battery. 10. Turn on the computer and all attached devices. 11. Use the Setup Utility program to set the date and time and any passwords. See Chapter 2, "Using the Setup Utility program," on page 21. Erasing a lost or forgotten password (clearing CMOS) This section applies to lost or forgotten passwords. For more information about lost or forgotten passwords, see the ThinkVantage Productivity Center program on your desktop. Note: If you are enrolled in the Hardware Password Reset program, refer to "Resetting the hard disk drive and power-on password" on page 23 to reset your password. If you do clear CMOS or restore Setup Utility defaults, you will have to re-enroll in the Hardware Password Reset program. To erase a forgotten password: 1. Turn off the computer and any attached devices, such as printers, monitors, and external drives. 2. Unplug all power cords from electrical outlets, and open the computer cover. See "Opening the cover" on page 10. 3. Pivot the drive bay assembly upward to gain access to the system board. 4. Locate the PCI riser. See "Locating components" on page 11. 5. Lift the PCI riser up to gain access to the Clear CMOS/Recovery jumper. See "Installing a PCI adapter" on page 14 6. Locate the Clear CMOS/Recovery jumper on the system board. See "Identifying parts on the system board" on page 11. 7. Move the jumper from the standard position (pins 1 and 2) to the maintenance or configure position (pins 2 and 3). 8. Close the computer cover and connect the power cord. See "Closing the cover and connecting the cables" on page 20. Chapter 1. Installing options 19

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Note:
When
the
computer
is
turned
on
for
the
first
time
after
battery
replacement,
an
error
message
might
be
displayed.
This
is
normal
after
replacing
the
battery.
10.
Turn
on
the
computer
and
all
attached
devices.
11.
Use
the
Setup
Utility
program
to
set
the
date
and
time
and
any
passwords.
See
Chapter
2,
“Using
the
Setup
Utility
program,”
on
page
21.
Erasing
a
lost
or
forgotten
password
(clearing
CMOS)
This
section
applies
to
lost
or
forgotten
passwords.
For
more
information
about
lost
or
forgotten
passwords,
see
the
ThinkVantage
Productivity
Center
program
on
your
desktop.
Note:
If
you
are
enrolled
in
the
Hardware
Password
Reset
program,
refer
to
“Resetting
the
hard
disk
drive
and
power-on
password”
on
page
23
to
reset
your
password.
If
you
do
clear
CMOS
or
restore
Setup
Utility
defaults,
you
will
have
to
re-enroll
in
the
Hardware
Password
Reset
program.
To
erase
a
forgotten
password:
1.
Turn
off
the
computer
and
any
attached
devices,
such
as
printers,
monitors,
and
external
drives.
2.
Unplug
all
power
cords
from
electrical
outlets,
and
open
the
computer
cover.
See
“Opening
the
cover”
on
page
10.
3.
Pivot
the
drive
bay
assembly
upward
to
gain
access
to
the
system
board.
4.
Locate
the
PCI
riser.
See
“Locating
components”
on
page
11.
5.
Lift
the
PCI
riser
up
to
gain
access
to
the
Clear
CMOS/Recovery
jumper.
See
“Installing
a
PCI
adapter”
on
page
14
6.
Locate
the
Clear
CMOS/Recovery
jumper
on
the
system
board.
See
“Identifying
parts
on
the
system
board”
on
page
11.
7.
Move
the
jumper
from
the
standard
position
(pins
1
and
2)
to
the
maintenance
or
configure
position
(pins
2
and
3).
8.
Close
the
computer
cover
and
connect
the
power
cord.
See
“Closing
the
cover
and
connecting
the
cables”
on
page
20.
Chapter
1.
Installing
options
19