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Lenovo ThinkCentre M75e Hardware Maintenance Manual - Page 84

on the left side., the corresponding holes in the chassis

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Figure 7. Removing the front bezel 4. To reinstall the front bezel, align the other three plastic tabs on the right side of the front bezel with the corresponding holes in the chassis, then pivot the front bezel inward until it snaps into position on the left side. Figure 8. Reinstalling the front bezel 78 ThinkCentre Hardware Maintenance Manual

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	39
Lenovo ThinkVantage Tools	39
Lenovo Welcome	39
SimpleTap	39
Lenovo Solution Center	39
Additional information resources	39
Specifications	40
For machine types: 4162, 5041, 5044, 5051, 5053, 5055, 5057, 5059, 5061, 5063, and 5065.	40
For machine types: 4163, 5042, 5046, 5052, 5054, 5056, 5058, 5060, 5062, 5064, and 5066.	41
Chapter 4. General checkout	43
Problem determination tips	43
Chapter 5. Diagnostic programs	45
Lenovo ThinkVantage Toolbox	45
Lenovo Solution Center	45
PC-Doctor for DOS	46
Creating a diagnostic disc	46
Running the diagnostic program from the diagnostic disc	46
Navigating through the diagnostic programs	46
Running tests	46
Viewing the test log	48
Chapter 6. Using the Setup Utility program	49
Starting the Setup Utility program	49
Viewing or changing settings	49
Using passwords	49
Password considerations	50
Power-on password	50
Administrator password	50
Setting, changing, or deleting a password	50
Enabling or disabling a device	50
Selecting a startup device	51
Selecting a temporary startup device	51
Viewing or changing the startup device sequence	51
Exiting the Setup Utility program	52
Chapter 7. Symptom-to-FRU index	53
Hard disk drive boot error	53
Power Supply Problems	53
Diagnostic error codes	53
Beep symptoms	71
POST error codes	72
Miscellaneous error messages	73
Undetermined problems	75
Chapter 8. Replacing FRUs (Machine Types: 4162, 5041, 5044, 5051, 5053, 5055, 5057, 5059, 5061, 5063, and 5065.)	77
Locations	77
Locating connectors, controls, and indicators on the front of your computer	77
Locating connectors and parts on the rear of your computer	78
Locating components	78
Locating parts on the system board	79
Locating internal drives	80
Handling static-sensitive devices	81
Installing or replacing hardware	82
Removing the computer cover	82
Removing and reinstalling the front bezel	83
Installing or replacing a PCI card	85
Installing or replacing a memory module	87
Replacing the battery	89
Replacing the power supply assembly	90
Replacing the heat sink and fan assembly	92
Replacing the microprocessor	94
Replacing the system board	96
Replacing the optical drive	97
Replacing the hard disk drive	99
Replacing the front audio and USB assembly	101
Replacing the rear fan assembly	102
Completing the parts replacement	104
Chapter 9. Replacing FRUs (Machine Types: 4163, 5042, 5046, 5052, 5054, 5056, 5058, 5060, 5062, 5064, and 5066.)	107
Locations	107
Locating connectors, controls, and indicators on the front of your computer	107
Locating connectors and parts on the rear of your computer	108
Locating components	108
Locating parts on the system board	109
Locating internal drives	110
Handling static-sensitive devices	111
Installing or replacing hardware	112
Removing the computer cover	112
Removing and reinstalling the front bezel	113
Accessing the system board components and drives	114
Installing or replacing a PCI card	116
Installing or replacing a memory module	118
Replacing the battery	120
Replacing the heat sink and fan assembly	121
Replacing the microprocessor	124
Replacing the system board	126
Replacing the power supply assembly	128
Replacing the optical drive	131
Replacing the hard disk drive	134
Replacing the front fan assembly	136
Completing the parts replacement	138
Chapter 10. FRU lists	141
Overall: MT 4163, 5042, 5046, 5054, 5056, 5058, 5062, and 5064	141
Mechanical FRUs	155
Keyboard and Mouse	160
Adapters and miscellaneous FRUs	192
Power Cords	196
Recovery discs	206
Windows 7 Home Premium 32 Recovery CD	206
Windows 7 Professional 32 Recovery CD	209
Windows 7 Professional 64 Recovery CD	216
Windows 7 Home Basic 32 Recovery CD	220
Windows 7 Home Premium 64 Recovery CD	222
Windows 7 Ultimate 32 Recovery CD	223
Windows 7 Ultimate 64 Recovery CD	223
Windows 7 Starter 32 Recovery CD	224
Windows XP Professional Recovery CD	225
Windows Vista Business 32 Recovery CD	229
Windows Vista Home Basic 32 Recovery CD	230
Overall: MT 4162, 5041, 5044, 5053, 5057, 5061, and 5063	232
Mechanical FRUs	246
Keyboard and Mouse	249
Adapters and miscellaneous FRUs	275
Power Cords	278
Recovery discs	285
Windows 7 Home Premium 32 Recovery CD	285
Windows 7 Professional 32 Recovery CD	289
Windows 7 Professional 64 Recovery CD	294
Windows 7 Home Basic 32 Recovery CD	297
Windows 7 Home Premium 64 Recovery CD	299
Windows 7 Ultimate 32 Recovery CD	300
Windows 7 Ultimate 64 Recovery CD	300
Windows 7 Starter 32 Recovery CD	301
Windows XP Professional Recovery CD	302
Windows Vista Business Recovery CD	306
Windows Vista Home Basic Recovery CD	306
Chapter 11. Additional service information	309
Security features	309
Hardware-controlled passwords	309
Operating system password	309
Vital Product Data	309
BIOS levels	309
Updating (flashing) the BIOS from a disc	309
Updating (flashing) the BIOS from your operating system	310
Recovering from a POST and BIOS update failure	310
Power management	311
Advanced Configuration and Power Interface (ACPI) BIOS	311
Automatic Power-On features	311
Appendix A. Notices	313
Television output notice	314
European conformance CE mark	314
Trademarks	314