Lenovo ThinkCentre M81 Hardware Maintenance Manual - Page 3

Contents, Using the Setup Utility - memory

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Contents Chapter 1. About this manual 1 Important safety information 1 Important information about replacing RoHS compliant FRUs 1 Chapter 2. Safety information 3 General safety 3 Electrical safety 3 Voltage-selection switch 5 Safety inspection guide 5 Handling electrostatic discharge-sensitive devices 6 Grounding requirements 6 Safety notices (multi-lingual translations) . . . . . 6 Chapter 3. General information . . . . 33 Lenovo Welcome 33 Lenovo ThinkVantage Tools 33 ThinkVantage Productivity Center 33 Lenovo Solution Center 34 SimpleTap 34 Additional information resources 34 Specifications 34 For machine types: 0268, 1730, 1943, 4166, 4169, 5030, 5048, 5069, and 7517. . . . . . 35 For machine types: 0267, 0385, 1981, 4167, 5025, 5032, 5049, 5070, and 7518. . . . . . 35 Chapter 4. General checkout . . . . . 37 Problem determination tips 37 Chapter 5. Diagnostic programs . . . 39 Lenovo ThinkVantage Toolbox 39 Lenovo Solution Center 39 PC-Doctor for DOS 40 Creating a diagnostic disc 40 Running the diagnostic program from the diagnostic disc 40 Navigating through the diagnostic programs . 40 Running tests 40 Viewing the test log 42 Chapter 6. Using the Setup Utility program 43 Starting the Setup Utility program 43 Viewing or changing settings 43 Using passwords 43 Password considerations 44 Power-on password 44 Administrator password 44 Hard disk password 44 Setting, changing, or deleting a password . . 44 Erasing lost or forgotten passwords (clearing CMOS 45 Enabling or disabling a device 45 Selecting a startup device 46 Selecting a temporary startup device . . . . 46 Selecting or changing the startup device sequence 46 Enabling ErP compliance mode 46 Smart performance choices 47 Exiting the Setup Utility program 47 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: 0268, 1730, 1943, 4166, 4169, 5030, 5048, 5069, and 7517 73 Locations 73 Locating connectors, controls, and indicators on the front of your computer 74 Locating connectors on the rear of your computer 75 Locating components 76 Locating parts on the system board . . . . 77 Locating internal drives 78 Handling static-sensitive devices 78 Installing or replacing hardware 79 Removing the computer cover 79 Removing and reinstalling the front bezel . . 80 Installing or replacing a PCI card 81 Installing or replacing a memory module . . . 84 Installing or replacing the optical drive . . . 86 Installing or replacing the card reader . . . . 88 Replacing the battery 92 Replacing the power supply assembly . . . 93 Replacing the heat sink and fan assembly . . 95 Replacing the microprocessor 97 © Copyright Lenovo 2011, 2012 i

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Contents
Chapter 1. About this manual
......
1
Important safety information
.
.
.
.
.
.
.
.
.
.
1
Important information about replacing RoHS
compliant FRUs
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
1
Chapter 2. Safety information
......
3
General safety
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
3
Electrical safety
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
3
Voltage-selection switch
.
.
.
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.
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.
.
.
.
5
Safety inspection guide
.
.
.
.
.
.
.
.
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.
.
.
5
Handling electrostatic discharge-sensitive
devices
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
6
Grounding requirements
.
.
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.
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.
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.
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.
.
6
Safety notices (multi-lingual translations)
.
.
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.
.
6
Chapter 3. General information
....
33
Lenovo Welcome
.
.
.
.
.
.
.
.
.
.
.
.
.
.
33
Lenovo ThinkVantage Tools
.
.
.
.
.
.
.
.
.
33
ThinkVantage Productivity Center
.
.
.
.
.
.
.
33
Lenovo Solution Center
.
.
.
.
.
.
.
.
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.
34
SimpleTap
.
.
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.
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.
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.
34
Additional information resources
.
.
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.
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.
.
34
Specifications
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
34
For machine types: 0268, 1730, 1943, 4166,
4169, 5030, 5048, 5069, and 7517
..
.
.
.
.
35
For machine types: 0267, 0385, 1981, 4167,
5025, 5032, 5049, 5070, and 7518
..
.
.
.
.
35
Chapter 4. General checkout
.....
37
Problem determination tips
.
.
.
.
.
.
.
.
.
.
37
Chapter 5. Diagnostic programs . . .
39
Lenovo ThinkVantage Toolbox
.
.
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.
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.
39
Lenovo Solution Center
.
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39
PC-Doctor for DOS
.
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40
Creating a diagnostic disc
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40
Running the diagnostic program from the
diagnostic disc
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40
Navigating through the diagnostic programs
.
40
Running tests
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40
Viewing the test log
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.
42
Chapter 6. Using the Setup Utility
program
................
43
Starting the Setup Utility program
.
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43
Viewing or changing settings
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43
Using passwords
.
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43
Password considerations
.
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44
Power-on password
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44
Administrator password
.
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.
44
Hard disk password
.
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.
44
Setting, changing, or deleting a password .
.
44
Erasing lost or forgotten passwords (clearing
CMOS)
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
45
Enabling or disabling a device
.
.
.
.
.
.
.
.
45
Selecting a startup device
.
.
.
.
.
.
.
.
.
.
46
Selecting a temporary startup device
.
.
.
.
46
Selecting or changing the startup device
sequence
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
46
Enabling ErP compliance mode
.
.
.
.
.
.
.
.
46
Smart performance choices
.
.
.
.
.
.
.
.
.
47
Exiting the Setup Utility program
.
.
.
.
.
.
.
47
Chapter 7. Symptom-to-FRU index . .
49
Hard disk drive boot error
.
.
.
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49
Power supply problems
.
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.
49
Diagnostic error codes
.
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49
Beep symptoms
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67
POST error codes
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68
Miscellaneous error messages
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.
69
Undetermined problems
.
.
.
.
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.
.
71
Chapter 8. Replacing FRUs (Machine
Types: 0268, 1730, 1943, 4166, 4169,
5030, 5048, 5069, and 7517)
......
73
Locations
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
73
Locating connectors, controls, and indicators
on the front of your computer
.
.
.
.
.
.
.
74
Locating connectors on the rear of your
computer
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
75
Locating components
.
.
.
.
.
.
.
.
.
.
76
Locating parts on the system board
.
.
.
.
77
Locating internal drives
.
.
.
.
.
.
.
.
.
78
Handling static-sensitive devices
.
.
.
.
.
.
.
78
Installing or replacing hardware
.
.
.
.
.
.
.
.
79
Removing the computer cover
.
.
.
.
.
.
.
79
Removing and reinstalling the front bezel
.
.
80
Installing or replacing a PCI card
.
.
.
.
.
.
81
Installing or replacing a memory module .
.
.
84
Installing or replacing the optical drive
.
.
.
86
Installing or replacing the card reader
.
.
.
.
88
Replacing the battery
.
.
.
.
.
.
.
.
.
.
92
Replacing the power supply assembly
.
.
.
93
Replacing the heat sink and fan assembly .
.
95
Replacing the microprocessor
.
.
.
.
.
.
.
97
© Copyright Lenovo 2011, 2012
i