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Lenovo ThinkCentre A70 Hardware Maintenance Manual for ThinkCentre A70 - Page 237

B4F C1U C1F C1S C1D N4S N4D N5S N5D N7S N7D N8S N8D P7U P7F P7S

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Power Cords Line Cord - Israel • MT 0889: B4G C9G D1G D2G D3G D4G D5G D6G D7G A1G A2G A3G A4G F2G F3G F4G F5G G6G G7G G8G G9G H1G H2G H3G H4G R6G • MT 5023: A1G A2G A3G A4G A5G A6G A7G A8G A9G B1G B2G B3G B4G B5G • MT 7844: C1G C2G C3G A1G D1G D2G F1G F2G F3G F4G H6G B4G K1G K4G M4G M5G M6G N3G M9G N1G N9G P1G P2G P3G P4G Q1G Q2G Q4G R4G Line Cord - A models • MT 0889: E6A E7A E8A J7A Q6A Q7A Q8A R4A R9A • MT 5023: A1G A2G A3G A4G A5G A6G A7G A8G A9G B1G B2G B3G B4G B5G • MT 7844: C1G C2G C3G A1G D1G D2G F1G F2G F3G F4G H6G B4G K1G K4G M4G M5G M6G N3G M9G N1G N9G P1G P2G P3G P4G Q1G Q2G Q4G R4G Line Cord - Thailand • MT 0889: Q9T R1T R4T R8T • MT 5023: • MT 7844: B4A R5A R6A R7A R8A S3A FRU # 41R3236 41R3208 43N9029 Power Cords-secondary Line Cord - US • MT 0889: E1T E2T E3T E5T E6A E7A E8A J4T J7A Q6A Q7A Q8A Q9T R1T R4A R4T R8T R9A • MT 5023: • MT 7844: B4A A1U A1F D4U D4F L3S L3D L4S L4DK3S K3D K9T L1T L2T B4U B4F C1U C1F C1S C1D N4S N4D N5S N5D N7S N7D N8S N8D P7U P7F P7S P8U P8F P8S P9U P9F P9S Q3T S2T S3A Line Cord - China • MT 0889: H7C H8C H9C J1C J3C • MT 5023: • MT 7844: Line Cord - Brazil (Portuguese) • MT 0889: • MT 5023: • MT 7844: Line Cord - LA High Volt (APU) • MT 0889: • MT 5023: • MT 7844: L3Y L4Y K3Y C1Y N4Y N5Y N7Y N8Y Line Cord - Korea • MT 0889: • MT 5023: • MT 7844: B7K B7R B8K B8R B9K B9R B4K B4R FRU # 41R3185 41R3257 41R3271 41R3177 41R3261 CRU 1 1 1 CRU 1 1 1 1 1 Chapter 10. FRU lists 231

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