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Lenovo ThinkCentre A70 Hardware Maintenance Manual for ThinkCentre A70 - Page 177

R3G R4G R5G R6G R9A Q1A S3A S5G T3A T4A T5A T6A T7A T8A U2G U9A

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Power Cords - Primary Line Cord - South Africa • MT 0864: H9A Q1A Q2A Q3A Q4A L9A M6A M7A N6G N7G R2A R3A S3A S4A S6G S7G U1A U3A • MT 7099: A6A A7A A8A B7G A1G C8A C5A F3A F4A F5A F6A E7G E8G E9G F1G F2G H1G H2G G1M H8G H8A L2G L3G L4G L5M A5G L8G N7G N8G N9G R3G R4G R5G R6G R9A Q1A S3A S5G T3A T4A T5A T6A T7A T8A U2G U9A V7A V8G W1A W2A W3A W4A W5A E4A K2A W6G W7G W8G • MT 7846: A1G A2G A3G A4G A5G A6G A7G A8G A9G B1G B2G B5G Line Cord - India • MT 0864: A9Q E1Q B4Q D3Q G1Q G2Q G3Q G4Q H2Q H3Q R4Q R6Q Q3Q R3Q R7Q U2Q U3Q U4Q U5Q U6Q U7Q • MT 7099: A6Q A7Q A8Q C4Q C5Q C6Q G2Q H5Q H9Q K1Q K2Q K3Q K4Q K5Q K6Q K7Q L9Q M3Q M4Q M5Q M6Q M7Q M8Q M9Q N1Q N2Q S2Q R9Q S9Q V1Q V2Q V3Q V4Q V5Q V6Q V7Q • MT 7846: Line Cord - China • MT 0864: • MT 7099: • MT 7846: Line Cord - Japan • MT 0864: • MT 7099: F7J F8J F9J A9J H3J H4J • MT 7846: Line Cord - Italy • MT 0864: N6G N7G S6G S7G • MT 7099: A7S A7Y B7S B7Y A1S C2S D7S D7Y E2Y E3Y E4Y E2S E3S E4S A1S A1Y H5S H5Y K9Y H8S H8Y A5S A5Y R1S R1Y R2S R2Y R3G R4G R5G R6G S5G U2G U1S U2S U3S U3S U4G U5G U6G U7G V8G W6G W7G W8G • MT 7846: A1G A2G A3G A4G A5G A6G A7G A8G A9G B1G B2G B5G Line Cord - Indonesia, Laos, Cambodia, and Vietnam A models • MT 0864: A2A B1A B7A F2A F3A F4A D2A D3A D4A D5A D6A C7A H9A Q1A Q2A Q3A Q4A L9A M6A M7A R2A R3A R4A S3A S4A U1A U3A • MT 7099: A6A C8A B5A C5A F3A F4A F5A F6A R9A Q1A S3A T3A T4A T5A T6A T7A T8A U9A V7A W1A W2A W3A W4A W5A E4A K2A • MT 7846: Line Cord - Denmark • MT 0864: A3G A9G B8G D7G D8G D9G E1G E2G E3G E4G E5G E6G E7G E8G E9G F1G B4G B5G B6G C8G Q5G K6G K7G K8G K9G M1G M2G N6G N7G S6G S7G • MT 7099: B7G A1G E7G E8G E9G F1G F2G H1G H2G H6G H7G H8G L2G L3G L4G L6G L7G A5G L8G N7G N8G N9G R3G R4G R5G R6G S5G U2G U3S U4G U5G U6G U7G V8G W6G W7G W8G • MT 7846: A1G A2G A3G A4G A5G A6G A7G A8G A9G B1G B2G B5G FRU # 41R3220 41R3341 41R3256 41R3248 41R3232 41R3208 41R3212 CRU 1 1 1 1 1 1 1 Chapter 10. FRU lists 171

Section	Page
Chapter 1. About this manual	7
Important safety information	7
Important information about replacing RoHS compliant FRUs	7
Chapter 2. Safety information	9
General safety	9
Electrical safety	9
Voltage-selection switch	11
Safety inspection guide	11
Handling electrostatic discharge-sensitive devices	12
Grounding requirements	12
Safety notices (multi-lingual translations)	12
Chapter 3. General information	35
Lenovo ThinkVantage Tools	35
ThinkVantage Productivity Center	35
Lenovo Welcome	35
Lenovo Solution Center	36
SimpleTap	36
Additional information resources	36
Specifications	36
For machine types: 0864, 7099, and 7846.	36
For machine types: 0889, 5023, and 7844.	37
Chapter 4. General checkout	39
Problem determination tips	39
Chapter 5. Diagnostic programs	41
Lenovo ThinkVantage Toolbox	41
Lenovo Solution Center	41
PC-Doctor for Rescue and Recovery	42
PC-Doctor for DOS	42
Creating a diagnostic disc	42
Running the diagnostic program from the diagnostic disc	42
Navigating through the diagnostic programs	43
Running tests	43
Viewing the test log	44
Chapter 6. Using the Setup Utility	45
Starting the Setup Utility program	45
Viewing or changing settings	45
Using passwords	45
Password considerations	46
Power-on password	46
Administrator password	46
Setting, changing, or deleting a password	46
Enabling or disabling a device	46
Selecting a startup device	47
Selecting a temporary startup device	47
Viewing or changing the startup device sequence	47
Exiting the Setup Utility program	48
Chapter 7. Symptom-to-FRU index	49
Hard disk drive boot error	49
Power Supply Problems	49
Diagnostic error codes	49
Beep symptoms	67
POST error codes	68
Miscellaneous error messages	69
Undetermined problems	71
Chapter 8. Replacing FRUs (Machine Types: 0864, 7099, and 7846.)	73
Locating connectors, controls, and indicators on the front of your computer	73
Locating connectors and parts on the rear of your computer	74
Locating components	74
Locating parts on the system board	75
Locating internal drives	76
Removing the computer cover	77
Removing and reinstalling the front bezel	78
Installing or replacing a PCI card	80
Installing or replacing a memory module	82
Replacing the battery	84
Replacing the power supply assembly	85
Replacing the heat sink and fan assembly	87
Replacing the microprocessor	89
Replacing the optical drive	92
Replacing the hard disk drive	93
Replacing the card reader	95
Replacing the front audio and USB assembly	96
Replacing the system board	97
Completing the parts replacement	100
Chapter 9. Replacing FRUs (Machine Types: 0889, 5023, and 7844.)	103
Locating connectors, controls, and indicators on the front of your computer	103
Locating connectors and parts on the rear of your computer	104
Locating components	104
Locating parts on the system board	105
Locating internal drives	106
Removing the computer cover	107
Removing and reinstalling the front bezel	108
Accessing the system board components and drives	110
Installing or replacing a PCI card	111
Installing or replacing a memory module	113
Replacing the battery	115
Replacing the heat sink and fan assembly	116
Replacing the microprocessor	119
Replacing the power supply assembly	122
Replacing the optical drive	126
Replacing the system board	129
Replacing the hard disk drive	131
Replacing the card reader	133
Replacing the front audio and USB assembly	135
Replacing the front fan assembly	136
Completing the parts replacement	138
Chapter 10. FRU lists	141
Overall: MT 0864, 7099, and 7846.	141
Mechanical FRUs	149
Keyboard and Mouse	151
Adapters and miscellaneous FRUs	175
Power Cords	176
Recovery discs	181
Windows 7 Professional 32 Recovery CD	181
Windows 7 Professional 32 with MS office starter 2010 Recovery CD	184
Windows 7 Home Basic 32 Recovery CD	188
Windows 7 Home Basic 32 Office Starter 2010 Recovery CD	189
Windows 7 Home Premium 32 Recovery CD	190
Windows 7 Home Premium 32 Office Starter 2010 Recovery CD	191
Windows 7 Home Premium 64 Recovery CD	193
Windows 7 Home Premium 64 with MS Office Starter 2010 Recovery CD	194
Windows 7 Professional 64 Recovery CD	195
Windows 7 Professional 64 with MS office starter 2010 Recovery CD	198
Windows XP Professional Recovery CD	200
Overall: MT 0889, 5023, and 7844.	202
Mechanical FRUs	210
Keyboard and Mouse	212
Adapters and miscellaneous FRUs	234
Power Cords	235
Recovery discs	239
Windows 7 Professional 32 Recovery CD	239
Windows 7 Professional 32 with MS office starter 2010 Recovery CD	242
Windows 7 Home Basic 32 Recovery CD	245
Windows 7 Home Basic 32 Office Starter 2010 Recovery CD	246
Windows 7 Home Premium 32 Recovery CD	247
Windows 7 Home Premium 32 Office Starter 2010 Recovery CD	249
Windows 7 Home Premium 64 Recovery CD	250
Windows 7 Home Premium 64 with MS Office Starter 2010 Recovery CD	252
Windows 7 Professional 64 Recovery CD	253
Windows 7 Professional 64 Office Starter 2010 Recovery CD	255
Windows XP Professional 32 Recovery CD	258
Chapter 11. Additional service information	261
Security features	261
Hardware-controlled passwords	261
Operating system password	261
Vital Product Data	261
BIOS levels	261
Updating (flashing) the BIOS from a disc	261
Updating (flashing) the BIOS from your operating system	262
Recovering from a POST and BIOS update failure	262
Power management	263
Advanced Configuration and Power Interface (ACPI) BIOS	263
Automatic Power-On features	263
Appendix A. Notices	265
Television output notice	266
European conformance CE mark	266
Trademarks	266