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ChengMing 3991
Dell ChengMing 3991 Manuals
Manuals and User Guides for Dell ChengMing 3991. We have
1
Dell ChengMing 3991 manual available for free PDF download: Service Manual
Dell ChengMing 3991 Service Manual (55 pages)
Brand:
Dell
| Category:
Desktop
| Size: 18.25 MB
Table of Contents
Table of Contents
3
Chapter 1: Working on Your Computer
5
Safety Instructions
5
Before Working Inside Your Computer
5
Safety Precautions
6
Electrostatic Discharge-ESD Protection
7
ESD Field Service Kit
7
Transporting Sensitive Components
8
After Working Inside Your Computer
8
Chapter 2: Technology and Components
9
USB Features
9
Hdmi 1.4- Hdmi 2.0
10
Chapter 3: Disassembly and Reassembly
11
Cover
11
Removing the Side Cover
11
Installing the Cover
13
Front Bezel
14
Removing the Front Bezel
14
Installing the Front Bezel
15
Hard Drive
16
2.5 Inch Hard Drive
16
3.5 Inch Hard Drive
20
Fan Assembly
21
Removing the Fan Assembly
21
Installing the Fan Assembly
22
Optical Drive
23
Removing the Optical Drive
23
Installing the Optical Drive
25
M.2 SSD Card
25
Removing the M.2 SSD Card
25
Installing the M.2 SSD Card
27
Power Supply Unit
27
Removing the Power Supply Unit
27
Installing the Power Supply Unit
30
Speaker
31
Removing the Speaker
31
Installing the Speaker
33
Heat Sink Assemblyassembly
33
Removing the Heat Sink Assembly
33
Installing the Heat Sink Assembly
35
Memory Modules
35
Removing the Memory Module
35
Installing the Memory Module
37
Expansion Card
37
Removing the Expansion Card
37
Installing the Expansion Card
39
WLAN Module
40
Removing the WLAN Module
40
Installing the WLAN Module
41
Coin-Cell Battery
42
Removing the Coin Cell Battery
42
Installing the Coin Cell Battery
43
Processor
43
Removing the Processor
43
Installing the Processor
45
System Board
46
Removing the System Board
46
Installing the System Board
48
Chapter 4: Troubleshooting
51
EC Diag LED Behavior
51
Dell Enhanced Pre-Boot System Assessment - Epsa Diagnostic 3.0
52
System Error Messages
53
Recovering the Operating System
53
Real-Time Clock (RTC Reset)
53
Backup Media and Recovery Options
54
Wifi Power Cycle
54
Chapter 5: Getting Help and Contacting Dell
55
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