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Lenovo 926503U User Manual - Page 56

Erasing, forgotten, password, clearing

UPC - 883609529888

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To change the battery: 1. Turn off the computer and all attached devices. 2. Remove the computer cover. See "Removing the cover" on page 20. 3. Locate the battery. See "Identifying parts on the system board" on page 22. 4. Remove the old battery. 5. Install the new battery. 6. Replace the computer cover, and plug in the power cord. See "Replacing the cover and connecting the cables" on page 37. 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. 7. Turn on the computer and all attached devices. 8. Use the Setup Utility program to set the date and time and any passwords. See Chapter 5, "Using the Setup Utility," on page 47. 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. To erase a forgotten password: 1. Turn off the computer and all attached devices. 2. Remove the computer cover. See "Removing the cover" on page 20. 3. Locate the Clear CMOS/Recovery jumper on the system board. See "Identifying parts on the system board" on page 22. 4. Move the jumper from the standard position (pins 1 and 2) to the maintenance or configure position (pins 2 and 3). 5. Replace the computer cover and connect the power cord. See "Replacing the cover and connecting the cables" on page 37. 6. Restart the computer, leave it on for approximately ten seconds. Turn off the computer by holding the power switch for approximately five seconds. The computer will turn off. 7. Repeat steps 2 through 4 on page 36. 36 User Guide

Section	Page
Contents	5
Important safety information	7
Conditions that require immediate action	7
General safety guidelines	8
Service and upgrades	8
Static electricity prevention	9
Power cords and power adapters	9
Voltage-selection switch	10
Extension cords and related devices	11
Plugs and outlets	11
External devices	11
Batteries	11
Heat and product ventilation	12
Operating environment	13
Electrical current safety information	13
Lithium battery notice	14
Modem safety information	14
Laser compliance statement	15
Power supply statement	15
Products with television tuner options installed	15
Note to CATV system installer	16
Example of antenna grounding	16
Data safety	17
Cleaning and maintenance	17
Using headphones or earphones	17
Additional safety information	18
Introduction	19
Chapter 1. Arranging your workspace	21
Comfort	21
Glare and lighting	22
Air circulation	22
Electrical outlets and cable lengths	22
Chapter 2. Setting up your computer	23
Connecting your computer	23
Turning on power	28
Finishing the software installation	28
Completing important tasks	29
Updating your operating system	29
Installing other operating systems	29
Updating your antivirus software	29
Shutting down the computer	29
Chapter 3. Installing options	31
Features	31
Specifications	34
Available options	35
Tools required	35
Handling static-sensitive devices	36
Installing external options	36
Locating the connectors on the front of your computer	37
Locating the connectors on the rear of your computer	38
Obtaining device drivers	39
Removing the cover	40
Locating components	41
Identifying parts on the system board	42
Installing memory	45
Installing adapters	46
Installing internal drives	48
Drive specifications	48
Installing a drive in bay 1 or bay 2	50
Connecting drives	52
Connecting the first optical drive	52
Connecting an additional optical drive, or parallel ATA hard disk drive	52
Connecting a serial ATA hard disk drive	53
Installing security features	53
Integrated cable lock	54
Padlock	55
Password protection	55
Changing the battery	55
Erasing a lost or forgotten password (clearing CMOS)	56
Replacing the cover and connecting the cables	57
Chapter 4. Recovering software	59
Creating and using the Product Recovery disc	59
Performing backup and recovery operations	60
Using the Rescue and Recovery workspace	61
Creating and using rescue media	62
Creating and using a Recovery Repair diskette	63
Recovering or installing device drivers	64
Setting a rescue device in the startup sequence	65
Solving recovery problems	65
Chapter 5. Using the Setup Utility	67
Starting the Setup Utility program	67
Viewing and changing settings	67
Using passwords	67
Password considerations	67
User Password	68
Administrator Password	68
Setting, changing, and deleting a password	68
Using Security Profile by Device	68
Selecting a startup device	69
Selecting a temporary startup device	69
Changing the startup device sequence	69
Advanced settings	70
Exiting from the Setup Utility program	70
Chapter 6. Updating system programs	71
Using system programs	71
Updating (flashing) BIOS from a diskette	71
Chapter 7. Troubleshooting and diagnostics	73
Basic troubleshooting	73
Diagnostic programs	74
PC-Doctor for Windows	75
PC-Doctor for DOS	75
Creating a diagnostic CD image	75
Creating diagnostic diskettes	75
Running diagnostics from the CD or diskettes	76
Running diagnostics from the Rescue and Recovery workspace	76
PC-Doctor for Windows PE	77
Running diagnostics from the Rescue and Recovery workspace	77
Cleaning the mouse	77
Optical mouse	77
Non-optical mouse	77
Chapter 8. Getting information, help, and service	79
Information resources	79
Online Books folder	79
ThinkVantage Productivity Center	79
Access Help	80
Safety and warranty	80
www.lenovo.com	80
Help and service	80
Using the documentation and diagnostic programs	81
Calling for service	81
Using other services	82
Purchasing additional services	82
Appendix A. Manual modem commands	83
Basic AT commands	83
Extended AT commands	85
MNP/V.42/V.42bis/V.44 commands	86
Fax Class 1 commands	87
Fax Class 2 commands	87
Voice commands	88
Appendix B. Notices	91
Television output notice	92
Trademarks	92

Match case Limit results 1 per page

change

the

battery:

Turn

off

the

computer

and

all

attached

devices.

Remove

the

computer

cover.

See

“Removing

the

cover”

page

20.

Locate

the

battery.

See

“Identifying

parts

the

system

board”

page

22.

Remove

the

old

battery.

Install

the

new

battery.

Replace

the

computer

cover,

and

plug

the

power

cord.

See

“Replacing

the

cover

and

connecting

the

cables”

page

37.

Note:

When

the

computer

turned

for

the

first

time

after

battery

replacement,

error

message

might

displayed.

This

normal

after

replacing

the

battery.

Turn

the

computer

and

all

attached

devices.

Use

the

Setup

Utility

program

set

the

date

and

time

and

any

passwords.

See

Chapter

“Using

the

Setup

Utility,”

page

47.

Erasing

lost

forgotten

password

(clearing

CMOS)

This

section

applies

lost

forgotten

passwords.

For

information

about

lost

forgotten

passwords,

see

the

ThinkVantage

Productivity

Center

program

your

desktop.

erase

forgotten

password:

Turn

off

the

computer

and

all

attached

devices.

Remove

the

computer

cover.

See

“Removing

the

cover”

page

20.

Locate

the

Clear

CMOS/Recovery

jumper

the

system

board.

See

“Identifying

parts

the

system

board”

page

22.

Move

the

jumper

from

the

standard

position

(pins

and

the

maintenance

configure

position

(pins

and

3).

Replace

the

computer

cover

and

connect

the

power

cord.

See

“Replacing

the

cover

and

connecting

the

cables”

page

37.

Restart

the

computer,

leave

for

approximately

ten

seconds.

Turn

off

the

computer

holding

the

power

switch

for

approximately

five

seconds.

The

computer

will

turn

off.

Repeat

steps

through

page

36.

User

Guide