User Manuals: Lenovo 11A9000DGE Desktop PC

User Manuals: Lenovo 11A9000DGE Desktop PC

Manuals and User Guides for Lenovo 11A9000DGE Desktop PC. We have 1 Lenovo 11A9000DGE Desktop PC manual available for free PDF download: Hardware Maintenance Manual

Lenovo 11A9000DGE Hardware Maintenance Manual

Lenovo 11A9000DGE Hardware Maintenance Manual (118 pages)

Brand: Lenovo | Category: Desktop | Size: 12 MB

Table of Contents

Table of Contents
3
About this Manual
5
Chapter 1. Important Safety Information

7
Chapter 2. Important Service Information

33
Chapter 3. Product Overview

35
- Front
  35
- Rear
  36
- Lock the Computer
  36
Chapter 4. Service Checkout and Symptom-To-FRU Index

39
- Service Checkout
  39
- Problem Determination Tips
  39
- Symptom-To-FRU Index
  40
- Hard Disk Drive Boot Error
  40
- Power Supply Problems
  41
- Beep Symptoms
  41
- POST Error Codes
  42
- Miscellaneous Error Conditions
  43
- Undetermined Problems
  45
Chapter 5. Troubleshooting, Diagnostics, and Recovery

47
- Basic Procedure for Resolving Computer Problems
  47
- Troubleshooting
  47
- Startup Problems
  48
- Audio Problems
  49
- Network Problems
  50
- Performance Problems
  52
- Storage Drive Problems
  53
- CD or DVD Problems
  53
- Serial Connector Problems
  54
- USB Device Problems
  54
- Software Problems
  55
- Diagnostics
  55
- Lenovo Diagnostic Tools
  55
- UEFI Diagnostic Program
  55
- Recovery
  56
- Restore System Files and Settings to an Earlier Point
  56
- Restore Your Files from a Backup
  56
- Reset Your Computer
  56
- Use Advanced Options
  56
- Windows Automatic Recovery
  57
- Create and Use a Recovery USB Device
  57
- Update the Device Driver
  58
Chapter 6. Hardware Removal and Installation

59
- Handling Static-Sensitive Devices
  59
- Service Tool Kit
  59
- Major Frus and Crus
  60
- System Board
  63
- Removing and Installing Hardware
  64
- Vertical Stand
  64
- Dust Shield
  66
- Computer Cover
  68
- Front Bezel
  69
- Optical Drive
  71
- Pivot the Drive Bay Assembly Upward and Downward
  72
- Primary Storage Drive (a 2.5-Inch or 3.5-Inch Storage Drive)
  74
- 2.5-Inch Secondary Storage Drive
  78
- M.2 Solid-State Drive
  81
- Coin-Cell Battery
  85
- Memory Module
  86
- PCI Express Card
  88
- Wi-Fi Card
  90
- Power Supply Assembly
  91
- Power Button Board and Card Reader
  93
- Thinkcentre LED
  96
- Internal Speaker
  98
- Thermal Sensor
  101
- Wi-Fi Antennas
  103
- Microprocessor
  108
- Cover Presence Switch
  110
Chapter 7. Notices and Trademarks

115

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