IBM 2681 Hardware Maintenance Manual - Page 35

Power-on, password, Hard-disk, Supervisor, remove, power-on, password - bios

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Related service information Power-on password: A power-on password (POP) protects the system from being powered on by an unauthorized person. The password must be entered before an operating system can be booted. Hard-disk password: There are two hard-disk passwords (HDPs): v User HDP-for the user v Master HDP-for the system administrator, who can use it to get access to the hard disk even if the user has changed the user HDP Note: There are two modes for the HDP: User only and Master + User. The Master + User mode requires two HDPs; the system administrator enters both in the same operation. The system administrator then provides the user HDP to the system user. Attention: If the user HDP has been forgotten, check whether a master HDP has been set. If it has, it can be used for access to the hard-disk drive. If no master HDP is available, IBM does not provide any services to reset either the user or the master HDP, or to recover data from the hard-disk drive. The hard-disk drive can be replaced for a scheduled fee. Supervisor password: A supervisor password (SVP) protects the system information stored in the IBM BIOS Setup Utility. The SVP must be entered in order to get access to the IBM BIOS Setup Utility and make changes to system configuration settings. Attention: If the SVP has been forgotten and cannot be made available to the servicer, there is no service procedure to reset the password. The system board must be replaced for a scheduled fee. How to remove the power-on password To remove a POP that you have forgotten, do the following: (A) If no SVP has been set: 1. Turn off the computer. 2. Remove the battery pack. For how to remove the battery pack, see "1010 Battery pack" on page 64. 3. Remove the backup battery. For how to remove the backup battery, see "1070 Backup battery" on page 81. General descriptions 31

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Power-on
password:
A
power-on
password
(POP)
protects
the
system
from
being
powered
on
by
an
unauthorized
person.
The
password
must
be
entered
before
an
operating
system
can
be
booted.
Hard-disk
password:
There
are
two
hard-disk
passwords
(HDPs):
v
User
HDP
—
for
the
user
v
Master
HDP
—
for
the
system
administrator,
who
can
use
it
to
get
access
to
the
hard
disk
even
if
the
user
has
changed
the
user
HDP
Note:
There
are
two
modes
for
the
HDP:
User
only
and
Master
+
User
.
The
Master
+
User
mode
requires
two
HDPs;
the
system
administrator
enters
both
in
the
same
operation.
The
system
administrator
then
provides
the
user
HDP
to
the
system
user.
Attention:
If
the
user
HDP
has
been
forgotten,
check
whether
a
master
HDP
has
been
set.
If
it
has,
it
can
be
used
for
access
to
the
hard-disk
drive.
If
no
master
HDP
is
available,
IBM
does
not
provide
any
services
to
reset
either
the
user
or
the
master
HDP,
or
to
recover
data
from
the
hard-disk
drive.
The
hard-disk
drive
can
be
replaced
for
a
scheduled
fee.
Supervisor
password:
A
supervisor
password
(SVP)
protects
the
system
information
stored
in
the
IBM
BIOS
Setup
Utility.
The
SVP
must
be
entered
in
order
to
get
access
to
the
IBM
BIOS
Setup
Utility
and
make
changes
to
system
configuration
settings.
Attention:
If
the
SVP
has
been
forgotten
and
cannot
be
made
available
to
the
servicer,
there
is
no
service
procedure
to
reset
the
password.
The
system
board
must
be
replaced
for
a
scheduled
fee.
How
to
remove
the
power-on
password
To
remove
a
POP
that
you
have
forgotten,
do
the
following:
(A)
If
no
SVP
has
been
set:
1.
Turn
off
the
computer.
2.
Remove
the
battery
pack.
For
how
to
remove
the
battery
pack,
see
“
1010
Battery
pack
”
on
page
64.
3.
Remove
the
backup
battery.
For
how
to
remove
the
backup
battery,
see
“
1070
Backup
battery
”
on
page
81.
Related
service
information
General
descriptions
31