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Lenovo ThinkCentre M50e Hardware Maintenance Manual - Page 169

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Machine Type 8148 Item # 8148 FRUs 1 Side cover assembly (all models) 2 ″L″ Cover assembly (all models) 3 Front Bezel assembly (all models) 4 Bezel trim/label kit (all models) 5 CD-ROM Drive 48X (Black) - w/o volume ctrl and headphone jack (models A1U D1U E1U 21U 31U A2U A3G B1G D2G E2G 41U 42U 13U 14G 15G 24G 34G 71G 72G 73G 74G 75G 76G 77G 78G 79G 7AG 7BG 7CG 7DG 15U A4U A4G B2U D3U 7EG 7HG 7JG 7KG E3G 35U 51G 7RG 7UG 25U A5U A5F 18U 18F 29U 29F A6G 7YG 7ZG) 5 CD-ROM Drive 48X (Black) - w/o volume ctrl and headphone jack (models A1U D1U E1U 21U 31U A2U A3G B1G D2G E2G 41U 42U 13U 14G 15G 24G 34G 71G 72G 73G 74G 75G 76G 77G 78G 79G 7AG 7BG 7CG 7DG 15U A4U A4G B2U D3U 7EG 7HG 7JG 7KG E3G 35U 51G 7RG 7UG 25U A5U A5F 18U 18F 29U 29F A6G 7YG 7ZG) FRU# 59P8547 59P8546 59P8544 49P1900 40Y8801 40Y8805 CRU * Chapter 11. FRU lists 163

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 8126, 8174, 8175, and 8176	48
Types 8149, 8177, and 8178	49
Types 8084, 8085, 8147, 8148, and 8179	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 8126, 8174, 8175, and 8176)	97
Locating connectors on the front	97
Locating the connectors on the rear	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	102
Removing and replacing the battery	103
Removing and replacing the power supply	104
Removing and replacing the system board	105
Removing and replacing the microprocessor	105
Removing and replacing drives	107
Closing the cover and connecting cables	110
Chapter 9. Replacing FRUs (Types 8149, 8177, and 8178)	111
Locating connectors on the front	111
Locating connectors on the rear	112
Removing the cover	112
Locating components	113
Identifying parts on the system board	114
Removing and replacing memory	115
Removing and replacing a PCI adapter	116
Removing and replacing the battery	116
Removing and replacing the power supply	117
Removing and replacing the system board	118
Removing and replacing the microprocessor	119
Removing and replacing drives	120
Installing the cover and connecting cables	122
Chapter 10. Replacing FRUs (Types 8084, 8085, 8147, 8148, and 8179	125
Locating connectors on the front	126
Locating the connectors on the rear	127
Removing the cover	127
Locating components	129
Identifying parts on the system board	130
Removing and replacing memory	131
Removing and replacing a PCI adapter	131
Removing and replacing the battery	133
Removing and replacing the power supply	133
Removing and replacing the system board	134
Removing and replacing the microprocessor	135
Removing and replacing drives	137
Closing the cover and connecting cables	139
Chapter 11. FRU lists	141
Machine Type 8084	141
Machine Type 8085	151
Machine Type 8126	161
Machine Type 8147	165
Machine Type 8148	169
Machine Type 8149	178
Machine Type 8174	184
Machine Type 8175	187
Machine Type 8176	194
Machine Type 8177	198
Machine Type 8178	209
Machine Type 8179	216
Chapter 12. Additional Service Information	219
Security features	219
Hardware controlled Passwords	219
Operating system password	219
Vital product data	219
Management Information Format (MIF)	219
BIOS levels	220
Flash update procedures	220
Updating (flashing) BIOS from a diskette or CD-ROM	220
Updating (flashing) BIOS from your operating system	220
Recovering from a POST/BIOS update failure	221
Power management	222
Automatic configuration and power interface (ACPI) BIOS	222
Automatic Power-On features	222
Recovering software using the Rescue and Recovery program	223
Starting the Rescue and Recovery workspace	223
Appendix. Notices	225
Television output notice	226

Match case Limit results 1 per page

Machine

Type

8148

Item

8148

FRUs

FRU#

CRU

±1²

Side

cover

assembly

(all

models)

59P8547

±2²

″

Cover

assembly

(all

models)

59P8546

±3²

Front

Bezel

assembly

(all

models)

59P8544

±4²

Bezel

trim/label

kit

(all

models)

49P1900

±5²

CD-ROM

Drive

48X

(Black)

w/o

volume

ctrl

and

headphone

jack

(models

A1U

D1U

E1U

21U

31U

A2U

A3G

B1G

D2G

E2G

41U

42U

13U

14G

15G

24G

34G

71G

72G

73G

74G

75G

76G

77G

78G

79G

7AG

7BG

7CG

7DG

15U

A4U

A4G

B2U

D3U

7EG

7HG

7JG

7KG

E3G

35U

51G

7RG

7UG

25U

A5U

A5F

18U

18F

29U

29F

A6G

7YG

7ZG)

40Y8801

±5²

CD-ROM

Drive

48X

(Black)

w/o

volume

ctrl

and

headphone

jack

(models

A1U

D1U

E1U

21U

31U

A2U

A3G

B1G

D2G

E2G

41U

42U

13U

14G

15G

24G

34G

71G

72G

73G

74G

75G

76G

77G

78G

79G

7AG

7BG

7CG

7DG

15U

A4U

A4G

B2U

D3U

7EG

7HG

7JG

7KG

E3G

35U

51G

7RG

7UG

25U

A5U

A5F

18U

18F

29U

29F

A6G

7YG

7ZG)

40Y8805

Chapter

11.

FRU

lists

163