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Lenovo ThinkCentre M57 Hardware Maintenance Manual - Page 152

Replacing, bracket, assembly

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Replacing the rear fan bracket assembly This procedure describes how to remove and replace the rear fan bracket assembly. 1. Open the computer cover. See "Opening the cover" on page 118. 2. Pivot the drive bay assembly upward to gain access to the rear fan bracket assembly. 3. Locate the rear fan bracket assembly. See "Locations" on page 114. 146 Hardware Maintenance Manual

Section	Page
Contents	5
Chapter 1. About this manual	7
Important Safety Information	7
Important information about replacing RoHS compliant FRUs	8
Chapter 2. Safety information	9
General safety	9
Electrical safety	9
Safety inspection guide	11
Handling electrostatic discharge-sensitive devices	12
Grounding requirements	12
Safety notices (multi-lingual translations)	13
Chapter 3. General information	43
The ThinkVantage™ Productivity Center program	43
Additional information resources	43
Specifications	44
Types 6019, 6064, 6066, 6067, 6072, 6073, 6077, 6078, 6087, 6088, 9181, and 9196	44
Types 6062, 6065, 6071, 6076, 6089, 9011, 9014, 9071, 9089, 9162, 9182 and 9303	45
Chapter 4. General Checkout	47
Problem determination tips	47
Chapter 5. Diagnostics	49
PC-Doctor for Windows	49
PC-Doctor for Windows PE	49
Running diagnostics from the Rescue and Recovery workspace	49
PC-Doctor for DOS	50
Creating a diagnostic CD image	50
Creating diagnostic diskettes	50
Running diagnostics from the CD or diskettes	51
Navigating through the diagnostics programs	51
Running tests	51
Test results	52
Quick and Full erase - hard drive	52
Viewing the test log	53
Chapter 6. Using the Setup Utility	55
Starting the Setup Utility program	55
Viewing and changing settings	55
Using passwords	55
Password considerations	55
User Password	56
Administrator Password	56
Setting, changing, and deleting a password	56
Selecting a startup device	56
Selecting a temporary startup device	56
Selecting or changing the startup device sequence	57
Advanced settings	57
Exiting from the Setup Utility program	57
Chapter 7. Symptom-to-FRU Index	59
Hard disk drive boot error	59
Power Supply Problems	59
Diagnostic error codes	60
Beep symptoms	82
POST error codes	83
Miscellaneous error messages	85
Undetermined problems	86
Chapter 8. Replacing FRUs (Types 6019, 6064, 6066, 6067, 6072, 6073, 6077, 6078, 6087, 6088, 9181, and 9196)	89
Locations	90
Front connectors	90
Rear connectors	91
Computer components	92
System board connectors	93
Opening the cover	94
Accessing system board components and drives	95
Replacing an adapter card	96
Replacing a memory module	97
Replacing the battery	99
Replacing the power supply	100
Replacing the system board	103
Replacing the microprocessor	106
Replacing the hard disk drive	110
Replacing an optical drive	112
Replacing the diskette drive	114
Replacing the fan assembly	116
Completing the FRU replacement	118
Chapter 9. Replacing FRUs (Types 6062, 6065, 6071, 6076, 6089, 9011, 9014, 9071, 9089, 9162, 9182, and 9303)	119
Locations	120
Front connectors	120
Rear connectors	121
Computer components	122
System board connectors	123
Opening the cover	124
Replacing a memory module	125
Replacing the CMOS battery	127
Replacing the power supply	128
Replacing the system board	131
Replacing the microprocessor	136
Replacing the hard disk drive	142
Replacing an optical drive	145
Replacing the system fan assembly	147
Replacing a PCI adapter	148
Replacing the internal speaker	150
Replacing the rear fan bracket assembly	152
Completing the parts replacement	154
Chapter 10. FRU lists	155
Machine Type 6019	155
Machine Type 6062	167
Machine Type 6064	179
Machine Type 6065	190
Machine Type 6066	201
Machine Type 6067	212
Machine Type 6071	223
Machine Type 6072	237
Machine Type 6073	254
Machine Type 6076	268
Machine Type 6077	280
Machine Type 6078	291
Machine Type 6087	302
Machine Type 6088	314
Machine Type 6089	325
Machine Type 7103	337
Machine Type 9011	349
Machine Type 9014	360
Machine Type 9071	371
Machine Type 9089	383
Machine Type 9162	395
Machine Type 9181	406
Machine Type 9182	417
Machine Type 9196	429
Machine Type 9303	440
Machine Type 9325	452
Machine Type 9330	463
Machine Type 9967	475
Machine Type 9970	487
Chapter 11. Additional Service Information	499
Security features	499
Hardware controlled Passwords	499
Operating system password	499
Vital product data	499
BIOS levels	499
Updating (flashing) BIOS from a CD-ROM or diskette	500
Recovering from a POST/BIOS update failure	500
Power management	501
Automatic configuration and power interface (ACPI) BIOS	501
Automatic Power-On features	501
Appendix. Notices	503
Television output notice	504