Ibm 6643 User Manual download pdf (Page 77)

Chapter

7.

Additional

service

information

Security

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.69

Passwords

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.69

Power-on

password

.

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.69

Removing

a

power-on

password

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.69

Administrator

password

.

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.70

Administrator

password

control

.

.

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.70

Operating

system

password

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.70

Vital

product

data

.

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.70

Alert

on

LAN

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.70

Hard

disk

drive

jumper

settings

.

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.70

IDE

hard

disk

drive

settings

.

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.71

CD-ROM

drive/DVD

drive

jumper

settings

.

.71

BIOS

levels

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.71

CMOS

Clear

Procedure

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.72

Flash

(BIOS/VPD)

update

procedure

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.72

Power

management

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.73

Advanced

Configuration

and

Power

Interface

(ACPI)

BIOS

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.73

Advanced

Power

Management

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.73

Automatic

Hardware

Power

Management

features

73

Setting

Automatic

Hardware

Power

Management

features

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.73

Automatic

Power-On

features

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.74

Network

settings

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.74

Flash

over

LAN

(update

POST/BIOS

over

network)

74

Wake

on

LAN

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.75

Security

Security

features

in

this

section

include

the

following:

v

Power-on

and

Administrator

Passwords

v

Alert

on

LAN

Passwords

The

following

section

provides

information

about

computer

hardware

and

software-related

passwords.

v

Power-on

Password

v

Administrator

Password

v

Operating

System

Password

Power-on

and

Administrator

passwords

are

set

in

the

Setup

Utility

program.

See

“Setup

Utility

program”

on

page

5

for

information

about

running

the

Setup

Utility.

Power-on

password

A

power-on

password

denies

access

to

the

computer

by

an

unauthorized

user

when

the

computer

is

powered

on.

When

a

power-on

password

is

active,

the

password

prompt

appears

on

the

screen

each

time

the

computer

is

powered

on.

The

computer

starts

after

the

proper

password

is

entered.

Removing

a

power-on

password:

To

service

a

computer

with

an

active

and

unknown

power-on

password,

power-off

the

computer

and

use

the

following

procedure:

1.

Unplug

the

power

cord.

2.

Remove

the

rear

bucket

housing

and

rear

EMC

cover

assembly.

3.

Refer

to

“System

board

layout”

on

page

14

to

find

the

CMOS

jumper.

4.

Change

the

CMOS

jumper

from

pins

1,2

to

pins

2,3.

5.

Power-on

the

computer.

The

system

senses

the

change

in

the

switch

setting

and

erases

the

password.

6.

Power-off

the

computer.

7.

Change

the

CMOS

jumper

back

to

pins

1,2.

8.

Install

the

rear

EMC

cover

assembly

and

rear

bucket

housing.

9.

Remind

the

user

to

enter

a

new

password

when

service

is

complete.

©

Copyright

IBM

Corp.

2004

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