Home » Lenovo Manuals » Desktops » Lenovo ThinkCentre A51 » Manual Viewer

Lenovo ThinkCentre A51 Hardware Maintenance Manual - Page 170

Keyboards, Preferred, Fullsize

View all Lenovo ThinkCentre A51 manuals

Add to My Manuals
Save this manual to your list of manuals

Page 170 highlights

The FRUs listed in the following table are not illustrated. 8095 FRUs HDD Mounting Brkt Asm (all models) Speaker Asm (all models) Speaker Cable Asm (RoHS Compliant) (all models) C2 Cable Asm (models CTO-U CTO-G) Cable, Second Serial Port (all models) Retention module assembly - (all models) Device Retaining Clips (all models) Fan and Duct Asm (all models) System board shield (all models) Cable, SATA (all models) Bezel Kit (all models) Cable and Front USB/Audio Card (all models) Cable, 2-drop IDE (all models) Cable, Diskette drive (all models) Shield, Blank Diskette drive (all models) Miscellaneous Hardware kit (all models) Universal Adapter Bracket 5.25 to 3.5-inch Cable, 1394 Front (all models) Cable, Power/LED (all models) Battery, 3.0V (all models) Mouse, Optical Wheelmouse, USB 400 DPI (models CTO-U CTO-G 11M) PCI-E DVI-D Connection Adapter (models CTO-U CTO-G) 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) 8095 Keyboards (Preferred Pro Fullsize) US English (models CTO-U CTO-G 11M) Arabic (models CTO-G) 164 Hardware Maintenance Manual FRU# 88P5916 00N5151 39M0614 09K9827 49P4530 89P6725 13N2449 39K5014 89P6727 89P6728 89P6731 89P6733 89P6734 89P6735 89P6736 89P6737 32P4743 89P6738 89P6739 33F8354 89P5089 19R2374 60H6043 60H6045 60H6046 60H6047 60H6048 60H6049 60H6050 60H6051 60H6052 60H6053 60H6054 60H6055 CRU FRU# 89P8300 89P8301 CRU * *

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

The

FRUs

listed

the

following

table

are

not

illustrated.

8095

FRUs

FRU#

CRU

HDD

Mounting

Brkt

Asm

(all

models)

88P5916

Speaker

Asm

(all

models)

00N5151

Speaker

Cable

Asm

(RoHS

Compliant)

(all

models)

39M0614

Cable

Asm

(models

CTO-U

CTO-G)

09K9827

Cable,

Second

Serial

Port

(all

models)

49P4530

Retention

module

assembly

(all

models)

89P6725

Device

Retaining

Clips

(all

models)

13N2449

Fan

and

Duct

Asm

(all

models)

39K5014

System

board

shield

(all

models)

89P6727

Cable,

SATA

(all

models)

89P6728

Bezel

Kit

(all

models)

89P6731

Cable

and

Front

USB/Audio

Card

(all

models)

89P6733

Cable,

2-drop

IDE

(all

models)

89P6734

Cable,

Diskette

drive

(all

models)

89P6735

Shield,

Blank

Diskette

drive

(all

models)

89P6736

Miscellaneous

Hardware

kit

(all

models)

89P6737

Universal

Adapter

Bracket

5.25

3.5-inch

32P4743

Cable,

1394

Front

(all

models)

89P6738

Cable,

Power/LED

(all

models)

89P6739

Battery,

3.0V

(all

models)

33F8354

Mouse,

Optical

Wheelmouse,

USB

400

DPI

(models

CTO-U

CTO-G

11M)

89P5089

PCI-E

DVI-D

Connection

Adapter

(models

CTO-U

CTO-G)

19R2374

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

8095

Keyboards

(Preferred

Pro

Fullsize)

FRU#

CRU

English

(models

CTO-U

CTO-G

11M)

89P8300

Arabic

(models

CTO-G)

89P8301

164

Hardware

Maintenance

Manual