Lenovo 5068 Personal Computer User Manual


 
Contents
Chapter 1. About this manual . . . . . . 1
Important Safety Information . . . . . . . . . . 1
Chapter 2. Safety information. . . . . . 3
General safety . . . . . . . . . . . . . . . . 3
Electrical safety . . . . . . . . . . . . . . . 3
Safety inspection guide . . . . . . . . . . . . 5
Handling electrostatic discharge-sensitive
devices . . . . . . . . . . . . . . . . . . 5
Grounding requirements . . . . . . . . . . . . 6
Safety notices (multi-lingual translations) . . . . . 6
Chapter 3. General information . . . . 29
Lenovo ThinkVantage Tools . . . . . . . . . 29
Lenovo Welcome. . . . . . . . . . . . . . 29
Lenovo ThinkVantage Toolbox . . . . . . . . 29
Additional information resources . . . . . . . 29
Specications . . . . . . . . . . . . . . . 30
Chapter 4. General Checkout . . . . . 31
Problem determination tips. . . . . . . . . . 31
Chapter 5. Troubleshooting and
diagnostics . . . . . . . . . . . . . . 33
Basic troubleshooting . . . . . . . . . . . . 33
Troubleshooting procedure . . . . . . . . . . 34
Troubleshooting . . . . . . . . . . . . . . 35
Audio problems . . . . . . . . . . . . 35
CD problems . . . . . . . . . . . . . 36
DVD problems . . . . . . . . . . . . . 37
Intermittent problems . . . . . . . . . . 39
Keyboard, mouse, or pointing device
problems . . . . . . . . . . . . . . . 39
Monitor problems. . . . . . . . . . . . 41
Networking problems . . . . . . . . . . 42
Option problems . . . . . . . . . . . . 45
Performance and lockup problems . . . . . 46
Printer problems . . . . . . . . . . . . 47
Serial port problems. . . . . . . . . . . 47
Software problems . . . . . . . . . . . 48
USB problems . . . . . . . . . . . . . 49
Diagnostics . . . . . . . . . . . . . . . . 49
Lenovo ThinkVantage Toolbox. . . . . . . 49
PC-Doctor for DOS . . . . . . . . . . . 50
Chapter 6. Using the Setup Utility
program . . . . . . . . . . . . . . . . 53
Starting the Setup Utility program . . . . . . . 53
Viewing and changing settings . . . . . . . . 53
Using passwords. . . . . . . . . . . . . . 53
Password considerations. . . . . . . . . 53
Power-On Password . . . . . . . . . . 54
Administrator Password . . . . . . . . . 54
Setting, changing, and deleting a password . 54
Enabling or disabling a device . . . . . . . . 54
Selecting a startup device . . . . . . . . . . 55
Selecting a temporary startup device . . . . 55
Selecting or changing the startup device
sequence . . . . . . . . . . . . . . . 55
Exiting the Setup Utility program . . . . . . . 55
Chapter 7. Symptom-to-FRU Index . . 57
Hard disk drive boot error . . . . . . . . . . 57
Power Supply Problems . . . . . . . . . . . 57
Diagnostic error codes . . . . . . . . . . . 58
Beep symptoms . . . . . . . . . . . . . . 75
POST error codes . . . . . . . . . . . . . 75
Miscellaneous error conditions . . . . . . . . 76
Undetermined problems . . . . . . . . . . . 78
Chapter 8. Replacing FRUs . . . . . . 79
Locating connectors, controls, and indicators on
the front of your computer . . . . . . . . . . 80
Locating connectors on the rear of your
computer. . . . . . . . . . . . . . . . . 81
FRU locations . . . . . . . . . . . . . . . 82
System board parts and connectors . . . . . . 84
Removing and reinstalling the system stand hinge
cover . . . . . . . . . . . . . . . . . . 85
Removing and reinstalling the system stand . . . 86
Removing and reinstalling the foot stands . . . . 88
Removing the computer cover . . . . . . . . 91
Replacing the hard disk drive . . . . . . . . . 92
Replacing the optical drive . . . . . . . . . . 94
Removing the VESA mount bracket . . . . . . 95
Replacing the rear I/O assembly. . . . . . . . 96
Removing and reinstalling the system board
shield . . . . . . . . . . . . . . . . . . 98
Replacing the power supply . . . . . . . . . 99
Replacing the microprocessor fan . . . . . . . 100
Replacing the heat sink assembly . . . . . . . 101
Replacing the microprocessor . . . . . . . . 103
Replacing the card reader . . . . . . . . . . 106
Opening the system board shield window . . . . 107
Replacing the battery . . . . . . . . . . . . 108
Replacing the inverter . . . . . . . . . . . . 109
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