Lenovo ThinkCentre M52 User Manual - Page 43

2.

Remove

the

cover.

See

“Removing

the

cover”

on

page

10.

3.

Locate

the

Clear

CMOS/Recovery

jumper

on

the

system

board.

See

“Identifying

parts

on

the

system

board”

on

page

14.

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

cover

and

connect

the

power

cord.

See

“Replacing

the

cover

and

connecting

the

cables.”

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

27..

8.

Move

the

jumper

back

to

the

standard

(pins

1

and

2).

9.

Replace

the

cover

and

connect

the

power

cord.

See

“Replacing

the

cover

and

connecting

the

cables.”

Replacing

the

cover

and

connecting

the

cables

After

working

with

options,

you

need

to

install

any

removed

parts,

replace

the

cover,

and

reconnect

any

cables,

including

telephone

lines

and

power

cords.

Also,

depending

on

the

option

that

is

installed,

you

might

need

to

confirm

the

updated

information

in

the

Setup

Utility

program.

To

replace

the

cover

and

connect

cables

to

your

computer:

1.

Ensure

that

all

components

have

been

reassembled

correctly

and

that

no

tools

or

loose

screws

are

left

inside

your

computer.

2.

Clear

any

cables

that

might

impede

the

replacement

of

the

cover.

3.

Position

the

cover

on

the

chassis

so

that

the

rail

guides

on

the

bottom

of

the

cover

engage

the

rails

and

push

the

cover

closed

until

it

latches.

4.

Install

any

cover

locking

devices

such

as

a

cable

lock

or

padlock

as

necessary.

5.

Reconnect

the

external

cables

and

power

cords

to

the

computer.

See

“Installing

external

options”

on

page

6.

6.

To

update

the

configuration,

see

Chapter

2,

“Using

the

Setup

Utility

program,”

on

page

29.

Chapter

1.

Installing

options

27

Section	Page
Contents	5
Important safety information	7
Conditions that require immediate action	7
General safety guidelines	8
Service	8
Power cords and power adapters	9
Extension cords and related devices	10
Plugs and outlets	10
Batteries	10
Heat and product ventilation	11
CD and DVD drive safety	11
Additional safety information	12
Lithium battery notice	12
Modem safety information	13
Laser compliance statement	13
Power supply statement	14
Overview	15
Information resources	15
Chapter 1. Installing options	17
Features	17
Specifications	20
Available options	21
Tools required	21
Handling static-sensitive devices	22
Installing external options	22
Locating the connectors on the front of your computer	23
Locating the connectors on the rear of your computer	24
Obtaining device drivers	25
Removing the cover	26
Pivoting or removing the optional hard disk drive mounting bracket	27
Locating components	29
Identifying parts on the system board	30
Installing memory	31
Installing adapters	32
Installing internal drives	33
Drive specifications	33
Installing a drive in bay 1 or bay 2	35
Connecting drives	37
Connecting the first optical drive	37
Connecting an additional optical drive, or parallel ATA hard disk drive	37
Connecting a serial ATA hard disk drive	38
Installing security features	38
Identifying security locks	39
Padlock	40
Integrated cable lock	41
Password protection	41
Changing the battery	41
Erasing a lost or forgotten password (clearing CMOS)	42
Replacing the cover and connecting the cables	43
Chapter 2. Using the Setup Utility program	45
Starting the Setup Utility program	45
Viewing and changing settings	45
Using passwords	45
Password considerations	45
User Password	46
Administrator Password	46
IDE Drive User Password	47
IDE Drive Master Password	47
Setting, changing, and deleting a password	47
Resetting the hard disk drive and power-on password	47
Using Security Profile by Device	49
Selecting a startup device	49
Selecting a temporary startup device	49
Changing the startup sequence	49
Exiting from the Setup Utility program	50
Advanced settings	50
Appendix A. Updating system programs	51
System programs	51
Updating (flashing) BIOS from a diskette or CD-ROM	51
Updating (flashing) BIOS from your operating system	52
Recovering from a POST/BIOS update failure	52
Appendix B. Cleaning the mouse	53
Cleaning an optical mouse	53
Cleaning a mouse with a ball	53
Appendix C. Manual modem commands	55
Basic AT commands	55
Extended AT commands	57
MNP/V.42/V.42bis/V.44 commands	58
Fax Class 1 commands	59
Fax Class 2 commands	59
Voice commands	60
Appendix D. Notices	63
Television output notice	64
Trademarks	64

Lenovo ThinkCentre M52 User Manual - Page 43

Replacing, cover, connecting, cables

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