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Lenovo 90HU Manuals
Manuals and User Guides for Lenovo 90HU. We have
3
Lenovo 90HU manuals available for free PDF download: Hardware Maintenance Manual
Lenovo 90HU Hardware Maintenance Manual (75 pages)
Brand:
Lenovo
| Category:
Desktop
| Size: 4.29 MB
Table of Contents
Table of Contents
3
Chapter 1. About this Manual
5
Important Safety Information
5
Chapter 2. Safety Information
7
General Safety
7
Electrical Safety
7
Safety Inspection Guide
9
Handling Electrostatic Discharge-Sensitive Devices
9
Grounding Requirements
10
Safety Notices
10
Chapter 3. General Information
13
Specifications
13
Chapter 4. General Checkout
15
Chapter 5. Using the Setup Utility
17
Starting the Lenovo BIOS Setup Utility Program
17
Viewing and Changing Settings
17
Using Passwords
17
Enabling or Disabling a Device
19
Selecting a Startup Device
20
Exiting the Lenovo BIOS Setup Utility Program
21
Chapter 6. Symptom-To-FRU Index
23
Hard Disk Drive Boot Error
23
Power Supply Problems
23
POST Error Codes
24
Undetermined Problems
24
Chapter 7. Locating Connectors, Controls and Components
25
Chapter 8. Replacing Hardware
33
General Information
33
Replacing the Keyboard and Mouse
34
Removing the Computer Cover
34
Replacing the Power Supply Assemby
35
Removing the Front Bezel
36
Replacing an Optical Drive
37
Replacing the M.2 Storage Drive
38
Replacing the Storage Drive
39
Replacing the Front Card Reader
40
Replacing the PCI Express Card
41
Replacing a Memory Module
42
Replacing the Wi-Fi Card
44
Replacing the Front Wi-Fi Antenna
45
Replacing the Rear Wi-Fi Antenna
46
Replacing the Heat-Sink and Fan Assembly
46
Replacing the Microprocessor
47
Replacing the Front Fan
49
Replacing the Rear Fan
50
Replacing the Motherboard
51
Chapter 9. FRU Lists
53
Chapter 10. General Information
75
Additional Service Information
75
Lenovo 90HU Hardware Maintenance Manual (63 pages)
Brand:
Lenovo
| Category:
Enclosure
| Size: 4.86 MB
Table of Contents
Table of Contents
5
Chapter 1. About this Manual
7
Important Safety Information
7
Chapter 2. Safety Information
9
General Safety
9
Electrical Safety
9
Safety Inspection Guide
11
Handling Electrostatic Discharge-Sensitive Devices
11
Grounding Requirements
12
Safety Notices
12
Chapter 3. General Information
15
Specifications
15
Chapter 4. General Checkout
17
Chapter 5. Using the Setup Utility
19
Starting the Lenovo BIOS Setup Utility Program
19
Viewing and Changing Settings
19
Using Passwords
19
Enabling or Disabling a Device
21
Selecting a Startup Device
22
Exiting the Lenovo BIOS Setup Utility Program
23
Chapter 6. Symptom-To-FRU Index
25
Hard Disk Drive Boot Error
25
Power Supply Problems
25
POST Error Codes
26
Undetermined Problems
26
Chapter 7. Locating Connectors, Controls and Components
27
Chapter 8. Replacing Hardware
35
General Information
35
Replacing the Keyboard and Mouse
36
Removing the Computer Cover
36
Replacing the Power Supply Assemby
37
Removing the Front Bezel
38
Replacing an Optical Drive
39
Replacing the M.2 Storage Drive
40
Replacing the Storage Drive
41
Replacing the Front Card Reader
42
Replacing the PCI Express Card
43
Replacing a Memory Module
44
Replacing the Wi-Fi Card
46
Replacing the Front Wi-Fi Antenna
47
Replacing the Rear Wi-Fi Antenna
48
Replacing the Heat-Sink and Fan Assembly
48
Replacing the Microprocessor
49
Replacing the Front Fan
51
Replacing the Rear Fan
52
Replacing the Motherboard
53
Chapter 9. FRU Lists
55
Chapter 10. General Information
63
Additional Service Information
63
Lenovo 90HU Hardware Maintenance Manual (63 pages)
Brand:
Lenovo
| Category:
Desktop
| Size: 5.33 MB
Table of Contents
Table of Contents
5
Chapter 1. About this Manual
7
Important Safety Information
7
Chapter 2. Safety Information
9
General Safety
9
Electrical Safety
9
Safety Inspection Guide
11
Handling Electrostatic Discharge-Sensitive Devices
11
Grounding Requirements
12
Safety Notices
12
Chapter 3. General Information
15
Specifications
15
Chapter 4. General Checkout
17
Chapter 5. Using the Setup Utility
19
Starting the Lenovo BIOS Setup Utility Program
19
Viewing and Changing Settings
19
Using Passwords
19
Enabling or Disabling a Device
21
Selecting a Startup Device
22
Exiting the Lenovo BIOS Setup Utility Program
23
Chapter 6. Symptom-To-FRU Index
25
Hard Disk Drive Boot Error
25
Power Supply Problems
25
POST Error Codes
26
Undetermined Problems
26
Chapter 7. Locating Connectors, Controls and Components
27
Chapter 8. Replacing Hardware
35
General Information
35
Replacing the Keyboard and Mouse
36
Removing the Computer Cover
36
Replacing the Power Supply Assemby
37
Removing the Front Bezel
38
Replacing an Optical Drive
39
Replacing the M.2 Storage Drive
40
Replacing the Storage Drive
41
Replacing the Front Card Reader
42
Replacing the PCI Express Card
43
Replacing a Memory Module
44
Replacing the Wi-Fi Card
46
Replacing the Front Wi-Fi Antenna
47
Replacing the Rear Wi-Fi Antenna
48
Replacing the Heat-Sink and Fan Assembly
48
Replacing the Microprocessor
49
Replacing the Front Fan
51
Replacing the Rear Fan
52
Replacing the Motherboard
53
Chapter 9. FRU Lists
55
Chapter 10. General Information
63
Additional Service Information
63
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