Lenovo THINKCENTRE 4221 Desktop Computer Manuals

Manuals and User Guides for Lenovo THINKCENTRE 4221 Desktop Computer. We have 1 Lenovo THINKCENTRE 4221 Desktop Computer manual available for free PDF download: Hardware Maintenance Manual

Lenovo THINKCENTRE 4221 Hardware Maintenance Manual

Lenovo THINKCENTRE 4221 Hardware Maintenance Manual (178 pages)

Lenovo Laptop User Manual

Brand: Lenovo | Category: Desktop | Size: 10.86 MB

Table of Contents

Table of Contents
5
Chapter 1. About this Manual

7
- Important Safety Information
  7
- Important Information about Replacing Rohs Compliant Frus
  7
Chapter 2. Safety Information

9
Chapter 3. General Information

35
- Online Books Folder
  35
- Lenovo Thinkvantage Tools
  35
- Lenovo Welcome
  35
- Additional Information Resources
  35
- Specifications
  36
Chapter 4. General Checkout

37
- Problem Determination Tips
  37
Chapter 5. Diagnostics

39
Chapter 6. Using the Setup Utility Program

45
Chapter 7. Configuring RAID

49
Chapter 8. Symptom-To-FRU Index

51
- Hard Disk Drive Boot Error
  51
- Power Supply Problems
  51
- Diagnostic Error Codes
  52
- Beep Symptoms
  69
- POST Error Codes
  70
- Miscellaneous Error Messages
  71
- Undetermined Problems
  73
Chapter 9. Replacing Frus

75
Chapter 10. FRU Lists

111
- Overall: MT 4215, 4219, 4220, 4221, and 4222
  111
- Mechanical Frus
  122
- Keyboard and Mouse
  126
- Adapters and Miscellaneous Frus
  147
- Power Cords
  150
- Recovery Discs
  156
Chapter 11. Additional Service Information

171
- Security Features
  171
  - Hardware-Controlled Passwords
    171
  - Operating System Password
    171
  - Vital Product Data
    171
- BIOS Levels
  171
- Updating (Flashing) the BIOS
  171
  - Updating (Flashing) the BIOS from a Disc
    172
  - Updating (Flashing) BIOS from Your Operating System
    172
- Recovering from a POST/BIOS Update Failure
  172
- Power Management
  173
  - Automatic Configuration and Power Interface (ACPI) BIOS
    173
  - Automatic Power-On Features
    173
Appendix A. Notices

175
- Television Output Notice
  176
- Trademarks
  176

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