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Lenovo ThinkCentre A51 Hardware Maintenance Manual - Page 267

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8172 FRUs Kensington Lock Spacer (all models) Planar I/O Shield Kit (all models) Battery (all models) Universal Adapter Bracket 5.25 to 3.5-inch Mouse, optical wheel (models CTO-G CTO-U 31U 31F 31S 31P 31L 31D 31Y 31G 31M 31A 31Q 31T 31C 31B 31H 31V 31K 31J 32M 33M 31E 3FU 3FF 3FS 3FP 3FL 3FD 3FY 3FG 3FM 3FA 3FQ 3FT 3FC 3FB 3FH 3FV 3FK 3FE 3FJ A1M 21M B1M B2M 34U 34F 34S 34P 34D 34Y 34G 34M 34A 34Q 34T 34C 34B 34H 34V 34K 34R 34E 34J A3M A4M 35U 35F 35B 35H 36A 36Q 36T 58U 58F 58S 58P 58U 58D 58Y 58G 58M 58A 58Q 58T 58C 58B 58H 58V 58K 58J 37B 37H 37K 38B 38H 38K 4XU 4XF 4XS 4XP 4XU 4XD 4XY 4XG 4XM 4XA 4XQ 4XT 4XC 4XB 4XH 4XV 4XK 4XJ 39A 39Q 39T 6AU 6AF 6AS 6AP 6AU 6AD 6AY 6AG 6AM 6AA 6AQ 6AT 6AC 6AB 6AH 6AV 6AK 6AJ 3AA 3AQ 3AT D1M D2M D3M D4M D5M D6M D7M D8A D8Q D8T BMU BMF BMS BMP BMU BMD BMY BMG BMM BMA BMQ BMT BMC BMB BMH BMV BMK BMJ E1A E1Q E1T) PCI-E DVI-D Connection Adapter (models CTO B2M D5M D6M D7M) 1394 Firewire PCI LP (ATX) (models CTO D6M D7M) RJ11 connector adapter (Spain, Ireland) (All 'G' models) RJ11 connector adapter (Austria) (All 'G' models) RJ11 connector adapter (Belgium) (All 'G' models) RJ11 connector adapter (Denmark) (All 'G' models) RJ11 connector adapter (Norway, Finland) (All 'G' models) RJ11 connector adapter (France) (All 'G' models) RJ11 connector adapter (Germany) (All 'G' models) RJ11 connector adapter (UK, NZ, HK) (All 'G', 'M', 'B', 'H' models) RJ11 connector adapter (Italy) (All 'G' models) RJ11 connector adapter (Netherlands) (All 'G' models) RJ11 connector adapter (Sweden) (All 'G' models) RJ11 connector adapter (Switzerland) (All 'G' models) FRU# 41A7702 41A7703 33F8354 32P4743 89P5089 19R2374 73P2608 60H6043 60H6045 60H6046 60H6047 60H6048 60H6049 60H6050 60H6051 60H6052 60H6053 60H6054 60H6055 CRU ** ** * * * 8172 Keyboard (Preferred Pro Fullsize, PS/2, Stealth Black) US English (model CTO 31U 31L 31G 31M 31A 31Q 31C 31H 32M 33M 31E 3FU 3FL 3FG 3FM 3FA 3FQ 3FC 3FH 3FE A1M 21M B1M B2M 34U 34G 34M 34A 34Q 34C 34H 34R 34E A3M A4M 35U 35H 36A 36Q 58U 58U 58G 58M 58A 58Q 58C 58H 37H 38H 4XU 4XU 4XG 4XM 4XA 4XQ 4XC 4XH 39A 39Q 6AU 6AU 6AG 6AM 6AA 6AQ 6AC 6AH 3AA 3AQ D1M D2M D3M D4M D5M D6M D7M D8A D8Q BMU BMU BMG BMM BMA BMQ BMC BMH E1A E1Q) Arabic (models CTO-G 31G 3FG 4SG 234G 58G 4XG 6AG BMG) Belgian/French (models CTO-G 31G 3FG 4SG 234G 58G 4XG 6AG BMG) Belgian/UK (models CTO-G 31G 3FG 4SG 234G 58G 4XG 6AG BMG) Bulgarian (models CTO-G 31G 3FG 4SG 234G 58G 4XG 6AG BMG) Chinese/US (models 31B 31V 3FB 3FV 34B 34V CTO-A 35B 58B 58V 37B 38B 4XB 4XV 6AB 6AV BMB BMV) Czech (models CTO-G 31G 3FG 4SG 234G 58G 4XG 6AG BMG) Danish (models CTO-G 31G 3FG 4SG 234G 58G 4XG 6AG BMG) Dutch (models CTO-G 31G 3FG 4SG 234G 58G 4XG 6AG BMG) FRU# 89P8300 89P8301 89P8302 89P8303 89P8305 89P8306 89P8307 89P8308 89P8309 CRU * * * * * * * * * Chapter 11. FRU lists 261

Section	Page
Contents	5
Chapter 1. About this manual	7
Important Safety Information	7
Strategy for replacing FRUs for CTO, CMV, and GAV products	8
Product definition	8
FRU Identification for CTO, CMV, and GAV products	8
Using PEW	8
Using eSupport	9
Using the HMM	9
Important information about replacing RoHS compliant FRUs	9
Chapter 2. Safety information	11
General safety	11
Electrical safety	11
Safety inspection guide	13
Handling electrostatic discharge-sensitive devices	14
Grounding requirements	14
Safety notices (multi-lingual translations)	15
Chapter 3. General information	47
The Access IBM program	47
Additional information resources	47
Physical specifications	47
Types 8095, 8096, 8141, 8142, 8145, 8420, and 8421	48
Types 8097, 8143, 8144, 8146, 8422, 8423 and 8427	49
Types 8098, 8171, 8172, 8173, 8424, and 8425	50
Chapter 4. General Checkout	51
Problem determination tips	52
Chapter 5. Diagnostics using PC-Doctor for DOS	55
Starting PC-Doctor from the Rescue and Recovery workspace	55
Starting PC-Doctor from a diagnostic diskette or CD-ROM	56
Diagnostics program download	56
Navigating through the diagnostics programs	56
Running diagnostics tests	56
Test selection	57
Test results	57
Fixed disk advanced test (FDAT)	57
Quick and Full erase - hard drive	59
Viewing the test log	60
Chapter 6. Using the Setup Utility	61
Starting the Setup Utility program	61
Viewing and changing settings	61
Exiting from the Setup Utility program	61
Using passwords	61
Password considerations	62
User Password	62
Administrator Password	62
IDE Drive User Password	62
IDE Drive Master Password	62
Setting, changing, and deleting a password	63
Using Security Profile by Device	63
Selecting a startup device	64
Selecting a temporary startup device	64
Changing the startup device sequence	64
Advanced settings	64
Chapter 7. Symptom-to-FRU Index	65
Hard disk drive boot error	65
Power Supply Errors	65
Diagnostic error codes	67
Beep symptoms	88
No-beep symptoms	90
POST error codes	91
Miscellaneous error messages	94
Undetermined problems	96
Chapter 8. Replacing FRUs (Types 8095, 8141, 8142, 8145, 8420, and 8421)	97
Locating controls and connectors on the front of the computer	97
Locating connectors on the rear of the computer	98
Removing the cover	98
Locating components	100
Identifying parts on the system board	101
Removing and replacing memory	102
Removing and replacing a PCI adapter	103
Removing and replacing the battery	104
Removing and replacing the power supply	105
Removing and replacing the system board	107
Removing and replacing the microprocessor	109
Removing and replacing the hard disk drive	115
Removing and replacing the optical drive	116
Removing and replacing the diskette drive	117
Removing and replacing the fan assembly	118
Closing the cover and connecting cables	119
Chapter 9. Replacing FRUs (Types 8143, 8144, 8146, 8422, 8423, and 8427)	121
Locating controls and connectors on the front of the computer	121
Locating connectors on the rear of the computer	122
Removing the cover	122
Locating components	123
Identifying parts on the system board	124
Removing and replacing memory	125
Removing and replacing a PCI adapter	126
Removing and replacing the battery	127
Removing and replacing the power supply	127
Removing and replacing the system board	130
Removing and replacing the microprocessor	132
Removing and replacing the hard disk drive	137
Removing and replacing the optical drive	138
Removing and replacing the diskette drive	139
Removing and replacing the fan assembly	140
Replacing the cover and connecting the cables	141
Chapter 10. Replacing FRUs (Types 8098, 8171, 8172, 8173, 8424, and 8425)	143
Locating controls and connectors on the front of the computer	143
Locating connectors on the rear of the computer	144
Opening the cover	144
Locating components	145
Identifying parts on the system board	146
Removing and replacing memory	147
Replacing a PCI adapter	148
Removing and replacing the battery	149
Removing and replacing the power supply	149
Removing and replacing the system board	152
Removing and replacing the microprocessor	153
Removing and replacing the hard disk drive	158
Removing and replacing the optical drive	159
Removing and replacing the diskette drive	160
Removing and replacing the fan assembly	160
Removing and replacing the internal speaker	163
Removing and replacing the power button and LED assembly	163
Closing the cover and connecting cables	165
Chapter 11. FRU lists	167
Machine Type 8095	167
Machine Type 8098	173
Machine Type 8141	178
Machine Type 8142	193
Machine Type 8143	204
Machine Type 8144	220
Machine Type 8145	230
Machine Type 8146	237
Machine Type 8171	243
Machine Type 8172	261
Machine Type 8173	271
Machine Type 8420	278
Machine Type 8421	286
Machine Type 8422	293
Machine Type 8423	304
Machine Type 8424	316
Machine Type 8425	325
Machine Type 8427	334
Chapter 12. Additional Service Information	343
Security features	343
Hardware controlled Passwords	343
Operating system password	343
Vital product data	343
Management Information Format (MIF)	343
BIOS levels	344
Flash update procedures	344
Updating (flashing) BIOS from a diskette or CD-ROM	344
Updating (flashing) BIOS from your operating system	344
Recovering from a POST/BIOS update failure	345
Power management	346
Automatic configuration and power interface (ACPI) BIOS	346
Automatic Power-On features	346
Recovering software using the Rescue and Recovery program	347
Starting the Rescue and Recovery workspace	347
Appendix. Notices	349
Television output notice	350

Match case Limit results 1 per page

8172

FRUs

FRU#

CRU

Kensington

Lock

Spacer

(all

models)

41A7702

Planar

I/O

Shield

Kit

(all

models)

41A7703

Battery

(all

models)

33F8354

Universal

Adapter

Bracket

5.25

3.5-inch

32P4743

Mouse,

optical

wheel

(models

CTO-G

CTO-U

31U

31F

31S

31P

31L

31D

31Y

31G

31M

31A

31Q

31T

31C

31B

31H

31V

31K

31J

32M

33M

31E

3FU

3FF

3FS

3FP

3FL

3FD

3FY

3FG

3FM

3FA

3FQ

3FT

3FC

3FB

3FH

3FV

3FK

3FE

3FJ

A1M

21M

B1M

B2M

34U

34F

34S

34P

34D

34Y

34G

34M

34A

34Q

34T

34C

34B

34H

34V

34K

34R

34E

34J

A3M

A4M

35U

35F

35B

35H

36A

36Q

36T

58U

58F

58S

58P

58U

58D

58Y

58G

58M

58A

58Q

58T

58C

58B

58H

58V

58K

58J

37B

37H

37K

38B

38H

38K

4XU

4XF

4XS

4XP

4XU

4XD

4XY

4XG

4XM

4XA

4XQ

4XT

4XC

4XB

4XH

4XV

4XK

4XJ

39A

39Q

39T

6AU

6AF

6AS

6AP

6AU

6AD

6AY

6AG

6AM

6AA

6AQ

6AT

6AC

6AB

6AH

6AV

6AK

6AJ

3AA

3AQ

3AT

D1M

D2M

D3M

D4M

D5M

D6M

D7M

D8A

D8Q

D8T

BMU

BMF

BMS

BMP

BMU

BMD

BMY

BMG

BMM

BMA

BMQ

BMT

BMC

BMB

BMH

BMV

BMK

BMJ

E1A

E1Q

E1T)

89P5089

PCI-E

DVI-D

Connection

Adapter

(models

CTO

B2M

D5M

D6M

D7M)

19R2374

1394

Firewire

PCI

(ATX)

(models

CTO

D6M

D7M)

73P2608

RJ11

connector

adapter

(Spain,

Ireland)

(All

’G’

models)

60H6043

RJ11

connector

adapter

(Austria)

(All

’G’

models)

60H6045

RJ11

connector

adapter

(Belgium)

(All

’G’

models)

60H6046

RJ11

connector

adapter

(Denmark)

(All

’G’

models)

60H6047

RJ11

connector

adapter

(Norway,

Finland)

(All

’G’

models)

60H6048

RJ11

connector

adapter

(France)

(All

’G’

models)

60H6049

RJ11

connector

adapter

(Germany)

(All

’G’

models)

60H6050

RJ11

connector

adapter

(UK,

NZ,

HK)

(All

’G’,

’M’,

’B’,

’H’

models)

60H6051

RJ11

connector

adapter

(Italy)

(All

’G’

models)

60H6052

RJ11

connector

adapter

(Netherlands)

(All

’G’

models)

60H6053

RJ11

connector

adapter

(Sweden)

(All

’G’

models)

60H6054

RJ11

connector

adapter

(Switzerland)

(All

’G’

models)

60H6055

8172

Keyboard

(Preferred

Pro

Fullsize,

PS/2,

Stealth

Black)

FRU#

CRU

English

(model

CTO

31U

31L

31G

31M

31A

31Q

31C

31H

32M

33M

31E

3FU

3FL

3FG

3FM

3FA

3FQ

3FC

3FH

3FE

A1M

21M

B1M

B2M

34U

34G

34M

34A

34Q

34C

34H

34R

34E

A3M

A4M

35U

35H

36A

36Q

58U

58G

58M

58A

58Q

58C

58H

37H

38H

4XU

4XG

4XM

4XA

4XQ

4XC

4XH

39A

39Q

6AU

6AG

6AM

6AA

6AQ

6AC

6AH

3AA

3AQ

D1M

D2M

D3M

D4M

D5M

D6M

D7M

D8A

D8Q

BMU

BMG

BMM

BMA

BMQ

BMC

BMH

E1A

E1Q)

89P8300

Arabic

(models

CTO-G

31G

3FG

4SG

234G

58G

4XG

6AG

BMG)

89P8301

Belgian/French

(models

CTO-G

31G

3FG

4SG

234G

58G

4XG

6AG

BMG)

89P8302

Belgian/UK

(models

CTO-G

31G

3FG

4SG

234G

58G

4XG

6AG

BMG)

89P8303

Bulgarian

(models

CTO-G

31G

3FG

4SG

234G

58G

4XG

6AG

BMG)

89P8305

Chinese/US

(models

31B

31V

3FB

3FV

34B

34V

CTO-A

35B

58B

58V

37B

38B

4XB

4XV

6AB

6AV

BMB

BMV)

89P8306

Czech

(models

CTO-G

31G

3FG

4SG

234G

58G

4XG

6AG

BMG)

89P8307

Danish

(models

CTO-G

31G

3FG

4SG

234G

58G

4XG

6AG

BMG)

89P8308

Dutch

(models

CTO-G

31G

3FG

4SG

234G

58G

4XG

6AG

BMG)

89P8309

Chapter

11.

FRU

lists

261