IBM 7979B1U User Manual - Page 107

Administrator, password, Resetting, passwords

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v Remove the battery from the server and then reinstall it. For instructions for removing the battery, see the Problem Determination and Service Guide on the IBM System x Documentation CD. v Change the position of the clear CMOS jumper on the system board to bypass the power-on password check. See "Resetting passwords" for additional information. Important: Before you change any switch settings or move any jumpers, turn off the server; then, disconnect all power cords and external cables. See the safety information that begins on page vii. Do not change settings or move jumpers on any system-board switch or jumper block that is not shown in this document. Attention: In a dc power environment, only trained service personnel other than IBM service technicians are authorized to connect or disconnect power to the dc power supply. See the documentation that comes with each dc power supply. Administrator password If an administrator password is set, you must type the administrator password for access to the full Configuration/Setup Utility menu. You can use any combination of up to seven characters (A-Z, a-z, and 0-9) for the password. Resetting passwords If you set an administrator password and then forget it, there is no way to change, override, or remove it. You must replace the system board. If you forget the user power-on password, you can move the power-on password override switch on the system board to the On position to bypass the power-on password check. The power-on password override switch is switch 5 on switch block SW2. The switch location is shown in the following illustration. Chapter 3. Configuring the server 91

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v
Remove
the
battery
from
the
server
and
then
reinstall
it.
For
instructions
for
removing
the
battery,
see
the
Problem
Determination
and
Service
Guide
on
the
IBM
System
x
Documentation
CD.
v
Change
the
position
of
the
clear
CMOS
jumper
on
the
system
board
to
bypass
the
power-on
password
check.
See
“Resetting
passwords”
for
additional
information.
Important:
Before
you
change
any
switch
settings
or
move
any
jumpers,
turn
off
the
server;
then,
disconnect
all
power
cords
and
external
cables.
See
the
safety
information
that
begins
on
page
vii.
Do
not
change
settings
or
move
jumpers
on
any
system-board
switch
or
jumper
block
that
is
not
shown
in
this
document.
Attention:
In
a
dc
power
environment,
only
trained
service
personnel
other
than
IBM
service
technicians
are
authorized
to
connect
or
disconnect
power
to
the
dc
power
supply.
See
the
documentation
that
comes
with
each
dc
power
supply.
Administrator
password
If
an
administrator
password
is
set,
you
must
type
the
administrator
password
for
access
to
the
full
Configuration/Setup
Utility
menu.
You
can
use
any
combination
of
up
to
seven
characters
(A–Z,
a–z,
and
0–9)
for
the
password.
Resetting
passwords
If
you
set
an
administrator
password
and
then
forget
it,
there
is
no
way
to
change,
override,
or
remove
it.
You
must
replace
the
system
board.
If
you
forget
the
user
power-on
password,
you
can
move
the
power-on
password
override
switch
on
the
system
board
to
the
On
position
to
bypass
the
power-on
password
check.
The
power-on
password
override
switch
is
switch
5
on
switch
block
SW2.
The
switch
location
is
shown
in
the
following
illustration.
Chapter
3.
Configuring
the
server
91