Lenovo 5027, 384, 4168, 5067, 7516, 7519, 266, 2491 manual Contents

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 . . . .	29
Lenovo Welcome	29
Lenovo ThinkVantage Tools	29
Lenovo ThinkVantage Toolbox	29
ThinkVantage Productivity Center	29
Additional information resources	30
Specifications	31

Chapter 4. General checkout	33
Checking for power problems	33
Problem determination tips	34
Chapter 5. Diagnostics	37
Lenovo ThinkVantage Toolbox	37
PC-Doctor for DOS	37
Creating a diagnostic disc	37
Running the diagnostic program from a
diagnostic disc	38
Navigating through the diagnostics
programs	38
Running tests	38
Viewing the test log	40
Chapter 6. Using the Setup Utility
program	41
Starting the Setup Utility program	41
Viewing and changing settings	41
Using passwords	41
Password considerations	42
Power-On Password	42
Administrator Password	42
Hard Disk Password	42
Setting, changing, and deleting a password .	42

Erasing lost or forgotten passwords (clearing
CMOS)	43
Enabling or disabling a device	43
Selecting a startup device	44
Selecting a temporary startup device . . . .	44
Selecting or changing the startup device
sequence	44
Smart performance choices	44
Exiting from the Setup Utility program	45

Chapter 7. Symptom-to-FRU index . .	47
Hard disk drive boot error	47
Diagnostic error codes	47
Beep symptoms	63
POST error codes	63
Miscellaneous error messages	65
Undetermined problems	66

Chapter 8. Replacing FRUs	69
Locations	69
Locating connectors, controls, and indicators
on the front of your computer	69
Locating connectors on the rear of your
computer	70
Locating components	71
Locating parts on the system board . . . .	71
Opening the computer cover	72
Removing and reinstalling the front bezel . . . .	73
Installing or replacing a memory module . . . .	74
Installing or replacing the PCI card	75
Replacing the hard disk drive	77
Replacing the optical drive	78
Replacing the battery	80
Replacing the heat sink	81
Replacing the microprocessor	82
Replacing the system board	86
Replacing the system fan assembly	88
Replacing the internal speaker	91
Replacing the front audio and USB assembly . .	92
Replacing the ac power adapter	94
Replacing the ac power adapter bracket . . . .	95
Completing the parts replacement	98

Chapter 9. FRU lists	99
Overall MT: 0266, 0384, 2491, 4168, 5027, 5067, ,
and 7519	99
Mechanical FRUs	108
Keyboard and Mouse	113

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