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11A9000DGE
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Lenovo 11A9000DGE manual available for free PDF download: Hardware Maintenance Manual
Lenovo 11A9000DGE Hardware Maintenance Manual (118 pages)
Brand:
Lenovo
| Category:
Desktop
| Size: 12.23 MB
Table of Contents
Table of Contents
3
About this Manual
5
Chapter 1. Important Safety Information
7
General Safety
7
Electrical Safety
8
Safety Inspection Guide
9
Handling Electrostatic Discharge-Sensitive Devices
10
Grounding Requirements
10
Safety Notices (Multi-Lingual Translations)
10
Chapter 2. Important Service Information
33
Strategy for Replacing Frus
33
Strategy for Replacing a Hard Disk Drive or a Solid-State Drive
33
Important Notice for Replacing a System Board
33
How to Use Error Codes
33
Strategy for Replacing Frus for CTO, Special-Bid, and Standard Models
34
Product Definition
34
FRU Identification
34
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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