Table Of Contents - Lenovo ThinkCentre A55 Hardware Maintenance Manual

Contents
Chapter 1. About This Manual . . . . . 1
Important Safety Information .
Important information about replacing RoHS
compliant FRUs . . .
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 . . . . 37
The Thinkvantage Productivity Center Program .
Additional Information Resources .
Specifications . . . .
Types 8700, 8701, 8705, 8717, 8973, 8975, 8979,
8983, 8985, 8991, 8995, 9265, 9269, 9277, 9279,
9283, 9287, 9379, 9383, 9387, 9389, 9631, 9635,
9637, 9646, and 9648
Types 8013, 8702, 8706, 8716, 8970, 8972, 8976,
8980, 8982, 8986, 8992, 8994, 9266, 9276, 9278,
9282, 9286, 9288, 9374, 9378, 9380, 9384, 9628,
9632, 9647, and 9649
Chapter 4. General Checkout . . . . . 41
Problem Determination Tips .
Chapter 5. Diagnostics . . . . . . . . 43
Pc-Doctor For Windows .
Pc-Doctor For Dos . .
Creating A Diagnostic Cd Image
Creating diagnostic diskettes
Running Diagnostics From The Cd Or Diskettes .
Running diagnostics from the Rescue and
Recovery Workspace .
Pc-Doctor For Windows Pe .
Running diagnostics from the Rescue and
Recovery workspace .
Navigating Through The Diagnostics Programs .
Running Tests. . . .
Test Results . . .
Fixed Disk Advanced Test (Fdat) .
Quick And Full Erase - Hard Drive .
Viewing The Test Log .
Chapter 6. Using The Setup Utility . . . 51
Starting The Setup Utility Program .
Viewing And Changing Settings .
Using Passwords . .
User Password . .
Administrator Password .
Selecting a startup device.
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Selecting A Temporary Startup Device .
Changing The Startup Device Sequence
. 1
Exiting From The Setup Utility Program .
. 2
Chapter 7. Symptom-To-Fru Index . . . 55
Hard Disk Drive Boot Error .
Power Supply Problems .
. 3
Diagnostic Error Codes .
. 3
Beep Symptoms .
. 5
Post Error Codes .
. 6
Miscellaneous Error Messages .
. 6
Undetermined Problems .
. 7
Chapter 8. Replacing FRUs (desktop
computers) . . . . . . . . . . . . . 85
. 37
. 37 Rear Connectors .
. 38 Removing The Cover
Locations . .
Identifying Parts On The System Board
Machine types 8013, 8716, 8976, 8986, 9266, 9282,
. 38 9374, 9384, 9646, and 9647
Machine types 8706, 8972, 8982, 8994, 9278, 9288,
9380, 9632, 9648, and 9649
Machine types 8702, 8970, 8980, 8992, 9276, 9286,
. 39 9378, and 9628 .
Replacing A Memory Module
Replacing The Cmos Battery.
Replacing The Power Supply .
. 41
Replacing The System Board .
Types 8702, 8706, 8970, 8972, 8980, 8982, 8992,
8994, 9276, 9278, 9286, 9288, 9378, 9380, 9628,
. 43
9632, and 9649 .
. 43
Types 8013, 8716, 8976, 8986, 9266, 9282, 9374,
. 44
9384, and 9647 .
. 44
Replacing The Microprocessor .
. 44
Types 8702, 8706, 8970, 8972, 8980, 8982, 8992,
8994, 9276, 9278, 9286, 9288, 9378, 9380, 9628,
. 45
9632, and 9649 .
. 45
Types 8013, 8716, 8976, 8986, 9266, 9282, 9374,
9384, and 9647 .
. 45
Replacing The Hard Disk Drive .
. 46
Replacing An Optical Drive .
. 46
Replacing The Diskette Drive
. 46
Replacing The Power Switch/Led Assembly .
. 47
Replacing The Front Panel Card.
. 48
Replacing The System Fan Assembly .
. 49
Replacing A Pci Adapter .
Completing The Fru Replacement
. 51
Chapter 9. Replacing FRUs (tower
. 51
computers) . . . . . . . . . . . . 127
. 51
Rear Connectors
. 51
Removing The Cover .
. 52
Locations . . .
. 53
Identifying Parts On The System Board .
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