Table Of Contents - Lenovo ThinkCentre Edge 91z Hardware Maintenance Manual

Contents
Chapter 1. About this manual . . . . . . 1
Important Safety Information . . . . . . . . . .
Chapter 2. Safety information . . . . . . 3
General safety . . . . . . . . . . . . . . . .
Electrical safety . . . . . . . . . . . . . . .
Safety inspection guide . . . . . . . . . . . .
Handling electrostatic discharge-sensitive
devices . . . . . . . . . . . . . . . . . .
Grounding requirements . . . . . . . . . . . .
Safety notices (multi-lingual translations) . . . . .
Chapter 3. General information . . . . 29
Lenovo ThinkVantage Tools
Lenovo Welcome. . . . . . . . . . . . . .
Lenovo ThinkVantage Toolbox . . . . . . . .
Lenovo Solution Center . . . . . . . . . . .
SimpleTap . . . . . . . . . . . . . . . .
Additional information resources
Specifications . . . . . . . . . . . . . . .
Chapter 4. General Checkout . . . . . 33
Problem determination tips . . . . . . . . . .
Chapter 5. Troubleshooting and
diagnostics . . . . . . . . . . . . . . 35
Basic troubleshooting . . . . . . . . . . . .
Troubleshooting procedure . . . . . . . . . .
Troubleshooting . . . . . . . . . . . . . .
Audio problems . . . . . . . . . . . .
CD problems . . . . . . . . . . . . .
DVD problems . . . . . . . . . . . . .
Intermittent problems . . . . . . . . . .
Keyboard, mouse, or pointing device
problems . . . . . . . . . . . . . . .
Monitor problems. . . . . . . . . . . .
Networking problems . . . . . . . . . .
Option problems . . . . . . . . . . . .
Performance and lockup problems . . . . .
Printer problems . . . . . . . . . . . .
Serial port problems. . . . . . . . . . .
Software problems . . . . . . . . . . .
USB problems . . . . . . . . . . . . .
Diagnostics . . . . . . . . . . . . . . . .
Lenovo ThinkVantage Toolbox . . . . . . .
Lenovo Solution Center . . . . . . . . .
PC-Doctor for DOS . . . . . . . . . . .
© Copyright Lenovo 2011
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Chapter 6. Using the Setup Utility
program . . . . . . . . . . . . . . . . 57
1
Starting the Setup Utility program . . . . . . .
Viewing and changing settings . . . . . . . .
3
Using passwords. . . . . . . . . . . . . .
3
Password considerations . . . . . . . . .
5
Power-On Password
Hard Disk Password. . . . . . . . . . .
5
Administrator Password . . . . . . . . .
6
Setting, changing, and deleting a password .
6
Enabling or disabling a device
Selecting a startup device . . . . . . . . . .
Selecting a temporary startup device . . . .
Selecting or changing the startup device
sequence . . . . . . . . . . . . . . .
Exiting from the Setup Utility program . . . . .
Chapter 7. Symptom-to-FRU Index . . 61
Hard disk drive boot error . . . . . . . . . .
Power Supply Problems . . . . . . . . . . .
Diagnostic error codes . . . . . . . . . . .
Beep symptoms . . . . . . . . . . . . . .
POST error codes . . . . . . . . . . . . .
Miscellaneous error conditions . . . . . . . .
Undetermined problems . . . . . . . . . . .
Chapter 8. Replacing FRUs . . . . . . 83
Locating connectors, controls, and indicators on
the front of your computer . . . . . . . . . .
Using your computer in monitor mode . . .
Locating connectors on the rear of your
computer . . . . . . . . . . . . . . . . .
FRU locations . . . . . . . . . . . . . . .
System board parts and connectors . . . . . .
Removing and reinstalling the system stand hinge
cover . . . . . . . . . . . . . . . . . .
Removing and reinstalling the system stand . . .
Removing and reinstalling the foot stands . . . .
Removing the computer cover . . . . . . . .
Replacing the hard disk drive . . . . . . . . .
Replacing the optical drive . . . . . . . . . .
Removing the VESA mount bracket . . . . . .
Replacing the rear I/O assembly . . . . . . . .
Removing and reinstalling the system board
shield . . . . . . . . . . . . . . . . . .
Removing and reinstalling the system fan . . . .
Replacing the power supply . . . . . . . . .
Replacing the microprocessor fan . . . . . . .
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