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ThinkCentre M90a Pro Gen3
User Manuals: Lenovo ThinkCentre M90a Pro Gen3 PC
Manuals and User Guides for Lenovo ThinkCentre M90a Pro Gen3 PC. We have
2
Lenovo ThinkCentre M90a Pro Gen3 PC manuals available for free PDF download: Hardware Maintenance Manual, User Manual
Lenovo ThinkCentre M90a Pro Gen3 Hardware Maintenance Manual (94 pages)
Brand:
Lenovo
| Category:
Desktop
| Size: 21.78 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
34
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
37
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. Diagnostics
47
Basic Procedure for Resolving Computer Problems
47
UEFI Diagnostic Program
47
Lenovo Diagnostic Tools
48
The Vantage App
48
Self-Help Resources
48
Chapter 6. Hardware Removal and Installation
51
Handling Static-Sensitive Devices
51
Service Tool Kit
51
Major Frus and Crus
52
System Board
56
Removing and Installing Hardware
58
External Options
58
Computer Stand
58
Rear I/O Cover
62
System Board Shield
63
VESA Mount Bracket
64
Cover Presence Switch (Intrusion Switch)
65
Primary Hard Disk Drive
65
Optical Drive
66
Secondary Hard Disk Drive and Bracket
67
M.2 Solid-State Drive
69
Memory Module
69
Wi-Fi Card and Wi-Fi Card Shield
70
Serial Connector Module
71
Card Reader Board
72
GPU Card
72
System Fan
73
Heat Sink
74
Microprocessor
74
System Board
75
Coin-Cell Battery
76
Integrated Camera and Microphone Module
78
Power Supply Assembly (with AC-In Bracket)
79
Side I/O Brackets
80
Main Frame
81
Front Decoration Cover
82
Radar Card
84
Internal Speakers
85
LCD Bracket and LCD Panel
86
Wi-Fi Antennas
87
LCD Backlight Cable, Touch Board Cable, and LCD LVDS Cable
88
Notices and Trademarks
91
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Lenovo ThinkCentre M90a Pro Gen3 User Manual (52 pages)
Brand:
Lenovo
| Category:
Desktop
| Size: 8.59 MB
Table of Contents
Table of Contents
3
Discover Your Lenovo Computer
5
Chapter 1. Meet Your Computer
7
Front
7
Rear
9
Features and Specifications
10
USB Specifications
11
Chapter 2. Get Started with Your Computer
13
Adjust the Computer Stand (for Selected Models)
13
Rotate the Monitor (for Selected Models)
14
Adjust the Tiltable Camera (for Selected Models)
14
Access Networks
15
Connect to the Wired Ethernet
15
Connect to Wi-Fi Networks (for Selected Models)
15
Use the Touch Screen (for Selected Models)
15
Connect an External Display
17
Detect Human Presence (for Selected Models)
17
Chapter 3. Explore Your Computer
19
The Vantage App
19
Night Light (Software Solution)
19
Set the Power Plan
19
Transfer Data
20
Connect to a Bluetooth-Enabled Device (for Selected Models)
20
Use the Optical Drive (for Selected Models)
20
Use a Media Card (for Selected Models)
21
Purchase Accessories
21
Chapter 4. Secure Your Computer and Information
23
Lock the Computer
23
Log in to Your Computer Securely
23
UEFI BIOS Passwords
23
Certificate Based BIOS Management
24
Face Authentication (for Selected Models)
25
Use Software Security Solutions
25
Windows Firewalls
25
Antivirus Programs
25
Computrace Agent Software Embedded in Firmware (for Selected Models)
26
Use BIOS Security Solutions
26
Wipe the Storage Drive Data
26
Cover Presence Switch
26
Intel BIOS Guard
27
Smart USB Protection
27
Chapter 5. UEFI BIOS
29
What Is UEFI BIOS
29
Enter the BIOS Menu
29
Navigate in the BIOS Interface
29
Change the Display Language of UEFI BIOS
29
Change the Display Mode of UEFI BIOS (for Selected Models)
30
Set the System Date and Time
30
Change the Boot Priority Order
30
Enable or Disable the Configuration Change Detection Feature
31
Enable or Disable the Automatic Power-On Feature
31
Enable or Disable the Smart Power-On Feature (for Selected Models)
31
Enable or Disable the Erp LPS Compliance Mode
31
Change the ITS Performance Mode
32
Change BIOS Settings before Installing a New Operating System
32
Update UEFI BIOS
33
Recover from a BIOS Update Failure
33
Clear CMOS
34
Chapter 6. Diagnostics
35
Lenovo Diagnostic Tools
35
The Vantage App
35
Chapter 7. CRU Replacement
37
CRU List
37
Remove or Replace a CRU
37
Computer Stand
37
Chapter 8. Help and Support
43
Self-Help Resources
43
Call Lenovo
45
Before You Contact Lenovo
45
Lenovo Customer Support Center
45
Purchase Additional Services
46
Appendix A. Compliance Information
47
Appendix B. Notices and Trademarks
49
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