Dell Precision 3431 - 3 Major components of your system

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Major components of your system

Side cover

2. Heatsink and fan

Major components of your system 15

Main Page

Table of Contents3
Working on Your Computer6
Safety Instructions6
Turning off Your Computer - Windows 106
Before Working Inside Your Computer7
After Working Inside Your Computer7
Technology and Components8
Processor8
Ddr49
USB Features10
USB Type-C11
Hdmi 2.013
Advantages of Displayport over USB Type-C14
Major Components of Your System15
Removing and Installing Components17
Recommended Tools17
Screw Size List18
Motherboard Layout19
Side Cover19
Removing the Side Cover19
Installing the Side Cover20
Expansion Card21
Removing Expansion Card21
Installing the Expansion Card22
Coin Cell Battery23
Removing Coin Cell Battery23
Installing the Coin Cell Battery24
Hard Drive Assembly25
Removing the Hard Drive Assembly25
Installing the Hard Drive Assembly27
Front Bezel28
Removing Front Bezel28
Installing Front Bezel29
Hard Drive and Optical Drive Module30
Removing the Hard Drive and Optical Drive Module30
Installing the Hard Drive and Optical Drive Module32
Optical Drive35
Removing the Optical Drive35
Installing the Optical Drive38
Memory Module41
Removing Memory Module41
Installing the Memory Module42
Heat Sink and Fan43
Removing Heat Sink and Heat Sink Fan43
Installing Heat Sink and Heat Sink Fan44
Intrusion Switch46
Removing Intrusion Switch46
Installing the Intrusion Switch46
Power Switch47
Removing Power Switch47
Installing the Power Switch48
Processor49
Removing Processor49
Installing the Processor50
M.2 Pcie Solid State Drive -SSD51
Removing the M.2 Pcie Solid State Drive -SSD51
Installing the M.2 Pcie Solid State Drive -SSD52
Intel Optane Card53
Removing the Intel Optane Card53
Installing the Intel Optane Card54
SD Card Reader - Optional55
Removing the SD Card Reader55
Installing the SD Card Reader56
Internal Antenna - Optional57
Removing the Internal Antenna57
Installing the Internal Antenna60
External Antenna - Optional65
Removing the External Antenna65
Installing the External Antenna68
M.2 2230 WLAN Card - Optional73
Removing the M.2 2230 WLAN Card73
Installing the M.2 2230 WLAN Card74
Power Supply Unit75
Removing Power Supply Unit or PSU75
Installing the Power Supply Unit or PSU77
Speaker79
Removing Speaker79
Installing the Speaker80
System Fan81
Removing the System Fan81
Installing the System Fan82
System Board83
Removing System Board83
Installing the System Board87
Troubleshooting Your Computer90
Enhanced Pre-Boot System Assessment - Epsa Diagnostics90
Running the Epsa Diagnostics90
Diagnostics90
Diagnostic Error Messages92
System Error Messages95
Getting Help96
Contacting Dell96
A Dust Filter for Dell Precision 3431 Small Form Factor97
B Installing the USB Type-C Card99
C Installing the VGA Card112
D Cable Cover for Dell Precision 3431 Small Form Factor125

Dell Precision 3431 - 3 Major components of your system

Table of Contents

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