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W21B
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Manuals and User Guides for Dell W21B. We have
1
Dell W21B manual available for free PDF download: Service Manual
Dell W21B Service Manual (96 pages)
Brand:
Dell
| Category:
Desktop
| Size: 36.89 MB
Table of Contents
Table of Contents
3
Chapter 1: Safety Instructions
6
Before Working Inside Your Computer
6
Before You Begin
7
Electrostatic Discharge-ESD Protection
7
ESD Field Service Kit
8
Transporting Sensitive Components
9
After Working Inside Your Computer
9
Chapter 2: Removing and Installing Components
10
Recommended Tools
10
Screw List
10
Stand
12
Removing the Fixed Stand
12
Installing the Fixed Stand
13
Removing the Articulating Stand
14
Installing the Articulating Stand
16
Removing the Height Adjustable Stand
17
Installing the Height Adjustable Stand
18
Cable Cover-Optional
19
Removing the Cable Cover
19
Installing the Cable Cover
21
Back Cover
22
Removing the Back Cover
22
Installing the Back Cover
24
Hard Drive
25
Removing the Hard Drive
25
Installing the Hard Drive
26
Memory Modules
26
Removing the Memory Modules
26
Installing the Memory Modules
27
System-Board Shield
28
Removing the System-Board Shield
28
Installing the System-Board Shield
29
Solid-State Drive
30
Removing the M.2 2230 Solid-State Drive
30
Installing the M.2 2230 Solid-State Drive
31
Removing the M.2 2280 Solid-State Drive/Intel Optane Memory Module
32
Installing the M.2 2280 Solid-State Drive/Intel Optane Memory Module
33
System Fan
34
Removing the Fan
34
Installing the Fan
35
Coin-Cell Battery
36
Removing the Coin-Cell Battery
36
Installing the Coin-Cell Battery
37
Wireless Card
38
Removing the Wireless Card
38
Installing the Wireless Card
39
Camera Assembly
41
Removing the Camera Assembly
41
Installing the Camera Assembly
42
Bottom Cover
43
Removing the Bottom Cover
43
Installing the Bottom Cover
44
Heat Sink
45
Removing the Heat Sink
45
Installing the Heat Sink
46
Processor
47
Removing the Processor
47
Installing the Processor
48
Rear-I/O Bracket
49
Removing the Rear-I/O Bracket
49
Installing the Rear-I/O Bracket
50
System Board
52
Removing the System Board
52
Installing the System Board
55
Speakers
57
Removing the Speakers
57
Installing the Speakers
58
Power-Button Board
60
Removing the Power-Button Board
60
Installing the Power-Button Board
60
Microphones
61
Removing the Microphones
61
Installing the Microphones
62
Side I/O-Board
63
Removing the Side-I/O Board
63
Installing the Side-I/O Board
65
Audio Board
66
Removing the Audio Board
66
Installing the Audio Board
67
Antenna Modules
67
Removing the Antenna Modules
67
Installing the Antenna Modules
70
Display Panel
71
Removing the Display Panel
71
Installing the Display Panel
73
Middle Frame
75
Removing the Middle Frame
75
Installing the Middle Frame
77
Chapter 3: Software
80
Operating System
80
Downloading the Drivers
80
Chapter 4: System Setup
81
BIOS Overview
81
Entering BIOS Setup Program
81
Navigation Keys
81
Boot Sequence
82
System Setup Options
82
Updating the BIOS
88
Updating the BIOS in Windows
88
Updating the BIOS in Linux and Ubuntu
89
Updating the BIOS Using the USB Drive in Windows
89
Updating the BIOS from the F12 One-Time Boot Menu
89
System and Setup Password
90
Assigning a System Setup Password
90
Deleting or Changing an Existing System Setup Password
91
Chapter 5: Troubleshooting
92
Supportassist Diagnostics
92
Diagnostic LED Behavior
92
Recovering the Operating System
93
Updating the BIOS in Windows
94
Updating the BIOS Using the USB Drive in Windows
94
Backup Media and Recovery Options
94
Wifi Power Cycle
94
Drain Residual Flea Power (Perform Hard Reset)
95
Chapter 6: Getting Help and Contacting Dell
96
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